acoustic digital memory

- λ-shaped negative-resistance device
- absolute pointing device
- absolute value device
- accumulation-mode charge-coupled device
- acoustic correlation device
- acoustic delay device
- acoustic imaging device
- acoustic-surface-wave device
- acoustic-surface-wave interaction charge-coupled device
- acoustic-volume-wave device
- acoustic-wave device
- acoustooptic device
- acoustoresistive device
- active device
- active medium propagation device
- adaptive device
- add-on device
- all-junction device
- aluminum-gate MOS device
- amorphous semiconductor memory device
- amorphous semiconductor switching device
- analog device
- answer device
- antihunt device
- anti-inrush device
- antijamming device
- anti-pumping device
- antisidetone device
- antistatic device
- antistrike device
- AO device
- arc-control device
- array device
- attached device
- attention device
- audible signal device
- audio device
- audio-response device
- augmentative device
- autocorrelation device
- automatic holding device
- automatic-alarm-signal keying device
- avalanche device
- avalanche-effect device
- backup device
- band-compression device
- beam-expanding device
- beam-lead device
- beam-manipulating device
- beam-narrowing device
- beam-transforming device
- bidirectional device
- bipolar device
- bistable device
- bistable optical device
- block device
- BlueTooth device
- bogey electron device
- bubble device
- bubble domain device
- bubble lattice storage device
- bubble memory device
- bucket-brigade charge-coupled device
- bucket-brigade device
- built-in pointing device
- bulk channel charge-coupled device
- bulk-acoustic-wave device
- bulk-charge-coupled device
- bulk-effect device
- bulk-property device
- bulk-type acoustooptic device
- bunching device
- buried channel charge-coupled device
- burst device
- bus-powered device
- callback port protection device
- calling device
- carrier-operated antinoise device
- cascade charge-coupled device
- cascaded thermoelectric device
- center-bonded device
- CFAR device
- character device
- charge-control device
- charge-coupled device
- charge-coupled imaging device
- charge-coupled line imaging device
- charge-coupled storage device
- charge-injection device
- charge-injection imaging device
- charge-transfer device
- charge-trapping device
- chip device
- chip-and-wire device
- clip-on pointing device
- clustered devices
- CMOS device
- coder device
- coherent electroluminescence device
- color imaging device
- COM device
- complex programmable logic device
- compound device
- computer output microfilm device
- conductively connected charge-coupled device
- constant false-alarm ratio device
- consumer device
- contiguous-disk bubble domain device
- controlled avalanche device
- controlled-surface device
- correlation device
- countermeasure devices
- coupling device
- cross-correlation device
- cross-field device
- cryogenic device
- current-access magnetic bubble device
- current-controlled device
- current-controlled differential-negative-resistance device
- current-controlled DNR device
- current-mode logic device
- current-operated device
- custom device
- data entry device
- data preparation device
- data recording device
- deception devices
- decision-making device
- decoding device
- dedicated device
- deformable-mirror device
- DEFT device
- delay device
- dense device
- depletion-mode device
- detecting device
- DI device
- dielectric isolation device
- diffused device
- digit delay device
- digital device
- digital micromirror device
- diode-array imaging device
- direct electronic Fourier transform device
- direct-access storage device
- direct-view device
- direct-viewing device
- discrete device
- disk device
- display device
- distributed diode device
- distributed interaction device
- division device
- D-MOS device
- domain propagation device
- domain-tip device
- double-negative-resistance-device
- double-quantum stimulated-emission device
- dynamically configurable device
- eavesdropping device
- E-beam fabricated device
- EBS device
- edge-bonded device
- EL device
- elastooptic device
- electrically programmable logic device
- electroluminescence device
- electromagnetic device
- electron device
- electron-beam semiconductor device
- electronic device
- electronic imaging device
- electron-optical device
- electrooptical device
- elementary MOS device
- embedded device
- encoding device
- end device
- energy conversion device
- enhancement-mode device
- epiplanar device
- epitaxial-device
- error-sensing device
- exchange-coupled thin-film memory device
- external control device
- false-echo devices
- Faraday-rotation device
- fast-discharge device
- ferrite device
- ferroelectric device
- FET device
- fiber-laser device
- field-access memory device
- field-effect device
- field-effect transistor device
- field-emission device
- field-programmable interconnect device
- file device
- file-protection device
- fixed tap-weight bucket-brigade device
- floating-gate device
- fluidic-device
- follow-up device
- four-layer device
- four-terminal device
- Frame Relay access device
- free-electron device
- freestanding pointing device
- FS device
- full-speed device
- functional device
- galvanomagnetic device
- galvanomagnetic semiconductor device
- gate-array device
- graphic input device
- graphic output device
- gripping device
- groove locating device
- guided-wave acoustooptic device
- guided-wave AO Bragg device
- Gunn device
- Gunn-effect device
- gyromagnetic device
- Hall device
- Hall-effect device
- harbor echo ranging and listening device
- head-cleaning device
- heteroepitaxial device
- heterojunction device
- high-technology device
- high-threshold device
- homing device
- hot-electron device
- human interface device
- hybrid ferromagnet-semiconductor device
- hybrid integrated-circuit device
- hybrid-type device
- I/O device
- identification device
- image-storage device
- imaging device
- implanted device
- incidental radiation device
- industrial data collection device
- infrared charge-coupled device
- input device
- input-output device
- insulated-gate device
- integrated electron device
- integrated injection device
- integrated optic device
- integrating device
- interface device
- interlocking device
- ion-implantation device
- ion-implanted bubble device
- ion-injection electrostatic plasma confinement device
- jelly-bean device
- Josephson device
- Josephson-effect device
- junction device
- junction-gate device
- keying device
- known-good device
- large-area p-n junction device
- laser annealing device
- laser device
- laser welding device
- laser-beam machining device
- leaded device
- leadless device
- left ventricular assist device
- light-detecting device
- light-emitting device
- linear beam device
- linear imaging device
- locked dynamically configurable device
- logic device
- long-channel device
- low-speed device
- low-threshold device
- LS device
- magnetic bubble device
- magnetic detecting device
- magnetic device
- magnetic flux quantum device
- magnetic tunnel junction memory device
- magnetic-wave device
- magnetoelastic-wave device
- magnetoelectronic device
- magnetooptic bubble-domain device
- magnetostatic-wave device
- magnetostrictive device
- magnetotunneling device
- majority-carrier device
- make-and-break device
- manipulating device
- marginal device
- maser device
- matching device
- measurement device
- mechanical switching device
- memory device
- MEMS device
- MEMS-based device
- metal-gate device
- metal-insulator-metal device
- metal-insulator-piezoelectric semiconductor device
- metal-oxide-silicon device
- metal-semiconductor device
- microcomputer device
- microdiscrete device
- microelectromechanical system device
- microelectromechanical system-based device
- microelectronic device
- microfluidic device
- MIDI device
- minority-carrier device
- MIPS device
- MIS device
- MNOS device
- molecule-sized device
- MOS color imaging device
- MOS device
- MOS memory device
- MSW device
- M-type device
- multiaperture device
- multijunction device
- multilayered memory device
- multilevel storage device
- multiple-tap bucket-brigade device
- multiple-unit semiconductor device
- multiport device
- multistable device
- multiterminal device
- n-channel device
- negation device
- negative-resistance device
- night viewing device
- n-n heterojunction device
- noise-rejection device
- nonburst device
- noninverting parametric device
- nonreciprocal field-displacement device
- n-p-n device
- n-terminal device
- one-port device
- open-collector device
- optically coupled device
- optically pumped device
- optoelectronic device
- O-type device
- output device
- overlay device
- oxide-passivated device
- P&P device
- parallel device
- parametric device
- passivated device
- passive device
- pattern recognition device
- p-channel device
- p-channel MOS device
- periodic permanent magnet focusing device
- persistent current device
- persistent-image device
- personal communication device
- photoconducting device
- photoelectric device
- photoemissive device
- photosensitive device
- photovoltaic device
- picking device
- piezoelectric device
- piezomagnetic device
- planar device
- planar-doped barrier device
- plasma device
- plasma-coupled semiconductor device
- plotting device
- plug-and-play device
- plug-in device
- PMOS device
- p-n junction device
- PnP device
- p-n-p device
- p-n-p-n device
- point-contact superconducting device
- pointing device
- polysilicon charge-coupled device
- port protection device
- p-p heterojunction device
- PPM focusing device
- programmable device
- programmable logic device
- protective device
- punch-through device
- pyroelectric thermal imaging device
- quantum-dot resonant tunneling device
- quasioptical device
- quenched domain mode device
- radiation-measuring device
- random-access device
- rapid single flux quantum device
- readout device
- reciprocal device
- recognition device
- rectifying device
- regulating device
- relative pointing device
- restricted radiation device
- reverberation device
- ringing device
- robot control device
- rotating-field bubble device
- rotating-field bubble domain device
- RSFQ device
- safety device
- SAW device
- Schottky barrier semiconductor device
- Schottky device
- Schottky-barrier-gate Gunn-effect digital device
- SCSI device
- security device
- self-powered device
- self-reacting device
- self-synchronous device
- semiconductor device
- semiconductor switching device
- semiconductor-magnetic device
- sensing device
- serial device
- shallow-base device
- short-channel device
- short-circuit-stable device
- silicon imaging device
- silicon-gate MOS memory device
- silicon-on-insulating substrate device
- single-junction device
- single-tap bucket-brigade device
- single-unit semiconductor device
- slot device
- snap-on pointing device
- solid-state device
- SOS device
- sound-absorbing device
- spark-quenching device
- speech recognition device
- spin-wave device
- square-law device
- starting device
- static discharge device
- storage device
- storage display device
- storage-charge device
- stream device
- stream-oriented device
- stroke input device
- superconducting device
- superconducting quantum device
- superconducting quantum interference device
- surface acoustic-wave device
- surface charge-transfer device
- surface mount device
- surface-controlled device
- switching device
- symbolic device
- tape device
- tape-moving device
- TE device
- tensoelectric device
- terminal device
- thermoelectric cooling device
- thermoelectric device
- thermoelectric heating device
- thick-film device
- thin-film device
- Tokamak device
- transferred-electron device
- transferred-electron microwave device
- transit-time device
- traveling magnetic domain memory device
- traveling-wave Gunn effect device
- trip-free mechanical switching device
- tse device
- tube device
- tunnel device
- tunnel emission device
- twisted nematic device
- two-junction bipolar device
- two-port device
- two-terminal device
- ULA device
- uncommitted logic array device
- unidirectional device
- unilateral device
- unpacked device
- vacuum tunnel device
- variable grating mode device
- variable inductance cryogenic device
- vertical junction device
- VGM device
- V-groove MOS device
- virtual device
- visual signal device
- VMOS device
- V-MOS device
- voice-operated device
- voice-operated gain-adjusting device
- voltage-controlled device
- voltage-controlled differential-negative-resistance device
- voltage-controlled DNR device
- voltage-operated device
- wafer printing device
- wireless device
- X-ray detecting device
- YIG device

- acceptance filter
- acoustic filter
- acoustic surface-wave filter
- acoustic-wave filter
- acoustooptical filter
- active filter
- ActiveX server filter
- adaptive filter
- air filter
- air-spaced filter
- all-pass filter
- all-pole filter
- all-zero filter
- ambient-light filter
- amplitude filter
- analog-computer filter
- analog-computer-type filter
- antialiasing filter
- apodized filter
- array-processing filter - band-stop filter
- barometric filter
- barometric air filter
- Bessel filter
- binary filter - biquad filter
- biquartic filter
- birefringent filter
- birefringent optical filter
- bleaching filter
- bogon filter
- Bozo filter
- BP filter
- breather filter
- bridge filter
- bridged-T filter
- broadcast filter
- brute-force filter
- Butterworth filter
- canonical recursive filter
- capacitor-input filter
- carrier transfer filter
- Cauer filter
- cavity filter
- cavity-coupled filter
- CCTT filter
- ceramic filter
- channel filter
- channel-bank filter
- channel-separation filter
- Chebyshev filter
- chirp-generating filter
- choke-input filter
- Christiansen filter
- chroma filter
- click filter
- clutter suppression filter
- C-message filter
- coaxial filter
- coherent memory filter
- color filter
- colored-glass filter
- color separation filter
- comb filter
- compensating filter
- complex spatial filter
- composite filter
- constant-current filter
- constant-K filter
- continuous capacitive tapping transversal filter
- continuous inductive tapping transversal filter
- continuously tunable filter
- continuous resistive tapping transversal filter
- convolution filter
- correction filter
- corrective filter
- crystal filter
- dechirping filter
- deconvolution filter
- decoupling filter
- deemphasis filter
- delay-line filter
- delta-modulation filter
- demodulator filter - dichroic filter
- dielectric filter
- dielectric slab filter
- digital filter
- digital frequency mapping filter
- digitally tuned filter - directional filter
- discrete filter
- discrimination filter
- dispersion filter
- dispersive filter
- dm filter
- Doppler filter
- dynamic tracking filter
- electric filter
- electric-wave filter
- electronically tunable filter
- elliptic filter
- elliptic-function filter
- enhancement filter - Fabry-Perot interference filter
- feed-forward MTI radar filter
- feedthrough filter
- fiber filter
- finite impulse-response filter
- finite-duration impulse-response filter
- fin-line filter
- FIR filter
- first-order filter
- fixed filter
- fixed-frequency filter
- fixed-point digital filter
- floating-point digital filter
- formant filter
- Fourier transform filter
- four-port filter
- FP filter
- Frechet filter
- frequency filter
- frustrated total reflection filter
- gelatin filter
- generating filter
- glare filter
- glass filter
- graded filter
- gray filter - harmonic filter
- heat filter
- HF filter
- high filter
- high-cut filter
- high-frequency filter
- high-order filter
- high-pass filter
- hiss filter
- hologram filter
- holographic filter
- IIR filter
- inductive-input filter
- infinite impulse-response filter
- infinite-duration impulse-response filter
- infrared filter
- in-line filter
- integrated-and-dump filter
- integrating filter
- interference filter
- interferential polarizational filter
- intermediate-frequency filter
- interpolation filter
- interstage filter
- inverse filter
- inverse-feedback filter
- ion-implanted array filter
- IR filter
- iterative filter
- junction filter
- Kalman filter
- key-click filter
- keying filter
- kill filter
- L-filter
- ladder-type filter
- lattice filter
- lead-zirconate-titanate filter
- leapfrog filter
- light filter
- line filter
- linear filter
- linear FM pulse compression filter
- linear space-invariant filter
- linear space-noninvariant filter
- liquid filter
- long-wavelength cutoff filter
- loop filter
- lossless filter
- low filter
- low-and-high-pass filter
- low-cut filter - L-section filter
- L-type filter
- lumped-constant filter
- Lyot filter
- magic-T filter
- magnetically tuned filter
- magnetooptical filter
- magnetostatic-wave filter
- magnetostrictive filter
- matched filter
- matched spatial filter
- matching filter
- m-derived filter
- mechanical filter
- mechanical-wave filter
- median filter
- microwave filter
- MIDI filter
- minimum-delay filter
- minimum-phase filter
- mismatched filter
- mode filter
- modulation filter
- multiple-bandpass filter
- multiple-reflection filter
- multiple-resonant-circuit filter
- multi-resonator filter
- multisection filter
- multistage filter
- narrow-band filter
- narrow-cut filter
- ND filter
- network filter
- neutral filter
- neutral-density filter
- neutral gray filter
- noise filter
- nonlinear filter
- nonrecursive filter
- nonselective filter
- notch filter
- n-section filter
- one-dimensional median filter
- optical filter
- packet filter
- parallel-T notch filter
- parametric filter
- partitioned adaptive filter
- passive filter
- phase filter
- photopic filter
- piezoelectric filter
- piezoelectric ceramics filter
- piezoelectric crystal filter
- pi-section filter
- plasma electroacoustic resonance filter
- plastics filter
- polarization interference filter
- polarizing filter
- polaroid filter
- pole-zero filter
- polynomial filter
- pop filter
- postemphasis filter
- postequalization filter
- powder filter
- power-line filter
- powerpack filter
- prediction filter - preequalization filter
- prewhitening filter
- programmable binary transversal filter
- pseudo-noise matched filter
- pulse-compression filter
- PZT filter
- quadrature filter
- quasi-optical filter
- radio-frequency interference filter
- range filter
- RC-filter
- recirculating filter
- recirculating air filter
- rectifier filter - reflection filter
- reflection holographic filter
- rejection filter
- resistance-capacitance filter
- resonant filter
- reverberation suppression filter
- RF filter
- RFI filter
- ripple filter
- roof filter
- rumble filter
- sampled-data filter
- SAW filter
- SC filter
- scatter filter
- scratch filter
- seasonal filter
- selective filter
- sending filter
- separation filter
- series m-derived filter
- SFG filter
- shaping filter
- sharp-cutoff filter
- short-term adaptive filter
- short-wavelength cutoff filter
- shunt m-derived filter
- signal-flow-graph filter
- signal-separation filter
- single-sideband filter
- slope filter
- slot filter
- slotted filter
- smoothing filter
- solid organic-dye filter
- solid-state filter
- sound-effect filter
- spatial filter
- spatial frequencyfilter
- spatial median filter
- spin-wave filter
- stacked crystal filter
- state-variable filter
- strip-line filter
- superconducting filter
- surface-acoustic-wave filter
- surface-wave chirp filter - switched-capacitor filter
- systolic filter
- tapped-delay-line filter
- tee filter
- temporal median filter
- thin-film filter
- thin-metal-film filter
- through filter
- time-dependent filter
- time-invariant filter
- time-varying filter
- tracking filter
- transmission filter
- transmission-line filter
- transparency filter
- transversal filter
- T-section filter
- tunable filter
- tuned filter
- twin-T filter
- two-dimensional filter
- two-dimensional median filter
- two-port filter
- ultraviolet filter
- unvoiced filter
- UV filter
- variable filter
- velocity filter
- vestigial-sideband filter
- voice filter
- voltage-controlled variable-bandwidth filter
- wave filter
- waveguide filter
- weighted filter
- whitening filter
- wide-angle filter
- wide-band filter
- wide-cut filter
- Wiener filter
- Wratten filter
- YIG filter
- yttrium-iron garnet filter
- zero-memory filter

- acceptance filter
- acoustic filter
- acoustic surface-wave filter
- acoustic-wave filter
- acoustooptical filter
- active filter
- ActiveX server filter
- adaptive filter
- air filter
- air-spaced filter
- all-pass filter
- all-pole filter
- all-zero filter
- ambient-light filter
- amplitude filter
- analog-computer filter
- analog-computer-type filter
- antialiasing filter
- apodized filter
- array-processing filter
- avalanche matched filter
- balanced filter
- band-elimination filter
- band-exclusion filter
- bandpass filter
- band-rejection filter
- band-splitting filter
- band-stop filter
- barometric air filter
- barometric filter
- Bessel filter
- binary filter
- binary transversal filter
- binomial filter
- biquad filter
- biquartic filter
- birefringent filter
- birefringent optical filter
- bleaching filter
- bogon filter
- Bozo filter
- BP filter
- breather filter
- bridge filter
- bridged-T filter
- broadcast filter
- brute-force filter
- Butterworth filter
- canonical recursive filter
- capacitor-input filter
- carrier transfer filter
- Cauer filter
- cavity filter
- cavity-coupled filter
- CCTT filter
- ceramic filter
- channel filter
- channel-bank filter
- channel-separation filter
- Chebyshev filter
- chirp-generating filter
- choke-input filter
- Christiansen filter
- chroma filter
- click filter
- clutter suppression filter
- C-message filter
- coaxial filter
- coherent memory filter
- color filter
- color separation filter
- colored-glass filter
- comb filter
- compensating filter
- complex spatial filter
- composite filter
- constant-current filter
- constant-K filter
- continuous capacitive tapping transversal filter
- continuous inductive tapping transversal filter
- continuous resistive tapping transversal filter
- continuously tunable filter
- convolution filter
- correction filter
- corrective filter
- crystal filter
- dechirping filter
- deconvolution filter
- decoupling filter
- deemphasis filter
- delay-line filter
- delta-modulation filter
- demodulator band filter
- demodulator filter
- dereverberation filter
- dichroic filter
- dielectric filter
- dielectric slab filter
- digital filter
- digital frequency mapping filter
- digital matched filter
- digital spectral mapping filter
- digitally tuned filter
- directional filter
- discrete filter
- discrimination filter
- dispersion filter
- dispersive filter
- dm filter
- Doppler filter
- dynamic tracking filter
- electric filter
- electric-wave filter
- electronically tunable filter
- elliptic filter
- elliptic-function filter
- enhancement filter
- extended Kalman filter
- Fabry-Perot filter
- Fabry-Perot interference filter
- feed-forward MTI radar filter
- feedthrough filter
- fiber filter
- finite impulse-response filter
- finite-duration impulse-response filter
- fin-line filter
- FIR filter
- first-order filter
- fixed filter
- fixed-frequency filter
- fixed-point digital filter
- floating-point digital filter
- formant filter
- Fourier transform filter
- four-port filter
- FP filter
- Frechet filter
- frequency filter
- frustrated total reflection filter
- gelatin filter
- generating filter
- glare filter
- glass filter
- graded filter
- gray filter
- grounded-capacitor low-pass filter
- gyrator filter
- harmonic filter
- heat filter
- HF filter
- high filter
- high-cut filter
- high-frequency filter
- high-order filter
- high-pass filter
- hiss filter
- hologram filter
- holographic filter
- IIR filter
- inductive-input filter
- infinite impulse-response filter
- infinite-duration impulse-response filter
- infrared filter
- in-line filter
- integrated-and-dump filter
- integrating filter
- interference filter
- interferential polarizational filter
- intermediate-frequency filter
- interpolation filter
- interstage filter
- inverse filter
- inverse-feedback filter
- ion-implanted array filter
- IR filter
- iterative filter
- junction filter
- Kalman filter
- key-click filter
- keying filter
- kill filter
- ladder-type filter
- lattice filter
- lead-zirconate-titanate filter
- leapfrog filter
- L-filter
- light filter
- line filter
- linear filter
- linear FM pulse compression filter
- linear space-invariant filter
- linear space-noninvariant filter
- liquid filter
- long-wavelength cutoff filter
- loop filter
- lossless filter
- low filter
- low-and-high-pass filter
- low-cut filter
- low-pass filter
- LP filter
- L-section filter
- L-type filter
- lumped-constant filter
- Lyot filter
- magic-T filter
- magnetically tuned filter
- magnetooptical filter
- magnetostatic-wave filter
- magnetostrictive filter
- matched filter
- matched spatial filter
- matching filter
- m-derived filter
- mechanical filter
- mechanical-wave filter
- median filter
- microwave filter
- MIDI filter
- minimum-delay filter
- minimum-phase filter
- mismatched filter
- mode filter
- modulation filter
- multiple-bandpass filter
- multiple-reflection filter
- multiple-resonant-circuit filter
- multi-resonator filter
- multisection filter
- multistage filter
- narrow-band filter
- narrow-cut filter
- ND filter
- network filter
- neutral filter
- neutral gray filter
- neutral-density filter
- noise filter
- nonlinear filter
- nonrecursive filter
- nonselective filter
- notch filter
- n-section filter
- one-dimensional median filter
- optical filter
- packet filter
- parallel-T notch filter
- parametric filter
- partitioned adaptive filter
- passive filter
- phase filter
- photopic filter
- piezoelectric ceramics filter
- piezoelectric crystal filter
- piezoelectric filter
- pi-section filter
- plasma electroacoustic resonance filter
- plastics filter
- polarization interference filter
- polarizing filter
- polaroid filter
- pole-zero filter
- polynomial filter
- pop filter
- postemphasis filter
- postequalization filter
- powder filter
- power-line filter
- powerpack filter
- prediction filter
- prediction-error filter
- preemphasis filter
- preequalization filter
- prewhitening filter
- programmable binary transversal filter
- pseudo-noise matched filter
- pulse-compression filter
- PZT filter
- quadrature filter
- quasi-optical filter
- radio-frequency interference filter
- range filter
- RC-filter
- recirculating air filter
- recirculating filter
- rectifier filter
- recurrent extended Kalman filter
- recursive filter
- reflection filter
- reflection holographic filter
- rejection filter
- resistance-capacitance filter
- resonant filter
- reverberation suppression filter
- RF filter
- RFI filter
- ripple filter
- roof filter
- rumble filter
- sampled-data filter
- SAW filter
- SC filter
- scatter filter
- scratch filter
- seasonal filter
- selective filter
- sending filter
- separation filter
- series m-derived filter
- SFG filter
- shaping filter
- sharp-cutoff filter
- short-term adaptive filter
- short-wavelength cutoff filter
- shunt m-derived filter
- signal-flow-graph filter
- signal-separation filter
- single-sideband filter
- slope filter
- slot filter
- slotted filter
- smoothing filter
- solid organic-dye filter
- solid-state filter
- sound-effect filter
- spatial filter
- spatial frequency filter
- spatial median filter
- spin-wave filter
- stacked crystal filter
- state-variable filter
- strip-line filter
- superconducting filter
- surface-acoustic-wave filter
- surface-wave chirp filter
- surface-wave comb filter
- swept filter
- switched-capacitor filter
- systolic filter
- tapped-delay-line filter
- tee filter
- temporal median filter
- thin-film filter
- thin-metal-film filter
- through filter
- time-dependent filter
- time-invariant filter
- time-varying filter
- tracking filter
- transmission filter
- transmission-line filter
- transparency filter
- transversal filter
- T-section filter
- tunable filter
- tuned filter
- twin-T filter
- two-dimensional filter
- two-dimensional median filter
- two-port filter
- ultraviolet filter
- unvoiced filter
- UV filter
- variable filter
- velocity filter
- vestigial-sideband filter
- voice filter
- voltage-controlled variable-bandwidth filter
- wave filter
- waveguide filter
- weighted filter
- whitening filter
- wide-angle filter
- wide-band filter
- wide-cut filter
- Wiener filter
- Wratten filter
- YIG filter
- yttrium-iron garnet filter
- zero-memory filter

- acoustic imaging device
- active device
- add-in device
- adjusting device
- airplane speaking device
- airplane tape recording device
- alarm device
- all-in-one device
- amplifying device
- analyzing device
- ancillary device
- announcer's device
- answering device
- antenna-feeder device
- antenna-matching device
- antipumping device
- arithmetic device
- arresting device
- attention device
- audible signal device
- automatic program input device
- automatic voice-alert device
- automatic-matching device
- auxiliary call-doubling device
- auxiliary loud-speaking device
- auxiliary radio communication device
- balancing device
- beam-processing device
- buffer device
- burglar-alarm device
- cable device
- calling device
- call-routing device
- central chain data device
- central-control device
- central-intranetwork device
- channel device
- channel-adjusting device
- charge-injection device
- clamping device
- color-imaging device
- combinational device
- combined safety-alarm device
- combined-measuring device
- command-execution device
- command-transit device
- command-transmission device
- compact device
- composite-optoelectronic device
- conditional-access device
- conditioning device
- connecting device
- connection device
- contact-switching device
- control device
- control-calling device
- controlled semiconductor device
- controller device
- counting device
- damping device
- data collection device
- data transmission device
- data-input device
- data-interface device
- data-recording device
- decoding device
- digital device
- digital signal processing device
- discrete control device
- dispatch device
- display device
- doubling device
- dual-tone ringing device
- duplex amplifier bypass device
- duty-reception device
- earthing device
- eavesdropping device
- edge device
- electrodynamical device
- electromagnetic device
- electronic device
- electronic-listening device
- electronic-relay device
- electronic-telegraph device
- electrostatic device
- emergency control device
- error-protecting device
- executive device
- facsimile device
- fast acting device
- fast action device
- fax machine memory device
- ferrite device
- ferrodynamical device
- ferrostatic device
- fiber-optic branching device
- fiber-optic interconnection device
- film optical-sensing device
- filter-matching device
- focusing device
- four-layer device
- four-terminal device
- frequency converting device
- frequency encoding device
- frequency-selective device
- full four-terminal device
- functional device
- gas-discharge device
- groove locating device
- heat device
- IC device
- image-display device
- imaging device
- independent device
- independent-calling device
- independent-telegraph device
- indicating device
- indicator device
- induction device
- in-line device
- input device
- input/output device
- input-isolating device
- input-output device
- input-protector device
- interface device
- interlocking device
- intermediate device
- isotropic device
- laser receiving device
- laser transmitting device
- level control device
- light alarm device
- light-sensitive device
- line HF-device
- linear device
- linear four-terminal device
- line-mounting device
- load device
- locking device
- lockout-signaling device
- logical device
- low-noise start-control device
- low-noise start-controlling device
- low-voltage device
- magnetic device
- magnetic tape sound recording device
- magnetic-wave device
- magnetoelectric device
- magnetoelectronic sparkproof device
- master device
- matching device
- measuring device
- mechanical switching device
- memory device
- message broadcasting device
- metering device
- microelectronic device
- microphone switching device
- mobile speaking device
- modem encryption device
- motor synchronizing device
- multicommunications device
- multifunction device
- multirange measuring device
- n-color device
- network section checkout device
- network synchronizing device
- noncontrolled semiconductor device
- nonlinear four-terminal device
- numbered data requiring and receiving device
- on-off device
- optical-to-optical interface device
- optimal receiving device
- optoelectronic device
- output device
- partial four-terminal device
- partially-controlled semiconductor device
- passive device
- peripheral control device
- peripheral device
- persistent-image device
- phase sensitivity protecting device
- phase shifting device
- photoconductive device
- photoelectric device
- photoemissive device
- photogalvanic device
- photosensitive device
- photothyristor electronic device
- planar device
- polarized device
- power supply device
- primary signal device
- printing device
- protection device
- protective cutout device
- pulse distributing device
- pulse firing device
- pulse semiconductor device
- pulse shortening device
- radio broadcasting device
- radioelectronic device
- real device
- receiving device
- recognition device
- recovering device
- regulating device
- release device
- remote alarm device
- remote control device
- remote network tripping device
- remote positioning device
- remote signaling device
- reserve switching device
- restricted radiation device
- ringing device
- rotary device
- routing device
- safety device
- safety-alarm device
- scanning device
- sealed distribution device
- selective call device
- semiconductor device
- semiconductor switching device
- sensing device
- signal transducing device
- signaling control device
- signaling device
- silicon imaging device
- single chip alarm device
- sizing device
- slave device
- solid optoelectronic device
- spark-protecting device
- spark-safe testing device
- speaking device
- special phototelegraph device
- spectrum transfer device
- start-control device
- start-controlling device
- starter-controlled device
- static protection device
- station HF-device
- stationary station automatic selection device
- stationary-electrical device
- storage device
- strobing device
- subscriber distribution device
- supporting device
- suppression device
- surface acoustic wave device
- surface communication device
- switching device
- sync device
- synthesized-radio device
- tap changing device
- tapping device
- tariff device
- telecontrol device
- teledata transmission device
- telegram format conversion device
- telemetric transmission device
- telephone device
- telephone periphery device
- telering device
- teletex device
- terminal device
- terminal telegraph device
- test device
- thermal regulation device
- three-terminal device
- threshold device
- time-delay device
- timing device
- touch-input device
- transceiving diving device
- transcient telegraph device
- transit device
- transmitter connecting device
- transmitting device
- trunk-encryption device
- two-terminal device
- ultrasonic imaging device
- universal calling device
- universal telegraph device
- videotex device
- voice-control device
- voice-operated gain-adjusting device
- voltage-sensing device
- warning device
- wire speaking device
- wireless speaking device

- unit under test
- abrasive-cleaning unit
- absolute units
- acknowledgement signal unit
- acoustic units
- allocation unit
- angle-tracking unit
- Ångström unit
- answer-back unit
- answering unit
- antenna coupler unit
- anticoincidence unit
- arbitrary unit
- arithmetic unit
- arithmetic and logic unit
- assembly unit
- associative unit
- attached unit
- audio processing unit
- audio-response unit
- automatic calling unit
- automatic lock-on unit
- automatic range tracking unit
- auxiliary power unit
- balanced-armature unit
- balancing unit
- base station unit
- base station control unit
- basic display unit
- basic measurement unit
- basic processing unit
- beam steering unit
- best matching unit
- bistable unit
- break-contact unit
- bubble unit
- bubble storage unit
- buffer unit
- bus interface unit
- camera control unit
- capacitor-resistor unit
- card punch unit
- card punching unit
- card-reader unit
- cassette unit
- central processing unit
- certificate signing unit
- CGS units
- changeover-contact unit
- channel unit
- channel service unit
- channel service unit/digital service unit
- chrominance unit
- clock unit
- cluster unit
- coefficient unit
- coil-spring reverberation unit
- coincidence unit
- communications control unit
- competitive unit
- computer interface unit
- connectionist unit
- control unit
- control-display unit
- converter unit
- conveyorized drying unit
- crosstalk unit
- curve scanning unit
- data unit
- data-acquisition unit
- data-adapter unit
- data-collection unit
- data encryption unit
- data-handling unit
- data transfer unit
- delay unit
- derived units
- developer unit
- dialing unit
- differentiating unit
- digital reverberation-echo unit
- digital service unit
- digital storage unit
- discrete unit
- disk unit
- display unit
- driver unit
- dual processing unit
- electron unit
- ENIGMA duration unit
- ENIGMA virtual page unit
- execution unit
- expansion unit
- experimental unit
- failed unit
- failure unit
- fixed-head disk unit
- floating-point processing unit
- forming unit
- frequency identification unit
- fuel-cell unit
- function unit
- fundamental units
- GeForce graphics processing unit
- geometrical unit
- graphics processing unit
- hidden unit
- hidden-layer unit
- Horner unit
- imaginary unit
- inductive energy storage unit
- inertial measurement unit
- information unit
- in-order retirement unit
- input unit
- input/output unit
- inquiry unit
- instruction unit
- instruction fetch unit
- integrating unit
- interface unit
- internetwork unit
- interrogating unit
- I/O control unit
- LAN access unit
- language unit
- line terminal unit
- logical unit
- magnetic-core storage unit
- magnetic tape unit
- mains unit
- make-contact unit
- matching unit
- matrix unit
- maximum transmission unit
- measurement unit
- medium attachment unit
- memory unit
- memory management unit
- microcontrol unit
- microprocessing unit
- microprocessor unit
- microprocessor control unit
- microprocessor-controlled unit
- microprogrammed unit
- MKS units
- mobile TV unit
- modular unit
- motor unit
- movable-head disk unit
- multiple unit
- multiplier unit
- multiply/accumulate unit
- multipoint control unit
- multistation access unit
- near-eye unit
- nerve unit
- network interface unit
- neural-like unit
- neuromotor unit
- numeric processing unit
- observation unit
- off-line unit
- on-line unit
- orderwire unit
- output unit
- paged memory management unit
- parallel arithmetic unit
- perceptual unit
- peripheral unit
- peripheral interface unit
- peripheral processing unit
- permanent storage unit
- piezoelectric-crystal unit
- pluggable unit
- plug-in unit
- processing unit
- processor unit
- producer's desk unit
- program-control unit
- protected data unit
- protocol data unit
- prototype unit
- quartz-crystal unit
- radio channel unit
- random-access storage unit
- reader unit
- read-write unit
- receptor unit
- recording unit
- register, arithmetic and logic unit
- reproducing unit
- reserve unit
- resistor-capacitor unit
- response unit
- reverberation unit
- sample unit
- sampling unit
- satellite delay compensation unit
- secure access unit
- secure telephone unit
- self-contained unit
- semantic unit
- sensory unit
- serial arithmetic unit
- service unit
- service protocol unit
- shaker unit
- SI units
- six-head tape-loop echo-reverberation unit
- slide unit
- spare unit
- standby unit
- start unit
- stop unit
- storage unit
- summing unit
- system processing unit
- tape unit
- telecine unit
- terminal unit
- terminal-control unit
- terminal-interchange unit
- time-base unit
- time processor unit
- timing unit
- traffic unit
- translation unit
- transmission control unit
- trichromatic unit
- tuning unit
- turntable unit
- ultimate sampling unit
- visual display unit
- voice-response unit
- volume unit
- winning unit
- wire-stripping unit
- word-processing unit
- writing unit