Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
12/1981
12/08/1981US4305101 Method and apparatus for selectively recording a broadcast
12/08/1981US4304992 Magnetic card reader
12/08/1981CA1114067A1 Error detection system
12/08/1981CA1114062A1 Motion picture sound system
12/08/1981CA1114058A1 Video signal processing circuit for eliminating an interfering signal
12/02/1981EP0040952A1 Precision time duration detector
12/01/1981US4303988 Random accessible signal filing system
12/01/1981US4303956 Load-sharing type magnetic head
12/01/1981US4303952 Recording and reproducing system
12/01/1981US4303951 Device for compensating unequal write fields in magnetic data-storage devices, especially in disc memories
11/1981
11/25/1981EP0040518A1 Data encoding and/or decoding
11/24/1981US4302783 Method and apparatus for recording and reproducing a plurality of bits on a magnetic tape
11/17/1981CA1112759A1 Velocity error control apparatus
11/11/1981EP0039565A1 Methods of and apparatuses for processing binary data
11/10/1981US4300174 Guard band control for magnetic disks
11/10/1981US4300173 Data recording and reading circuitry
11/10/1981US4300172 Playback system with amplitude correction for frequency modulated signals
11/10/1981CA1112360A1 Circuit system for reproducing a signal from a moving record carrier
11/10/1981CA1112356A1 Multiple bit deskew buffer
11/03/1981US4298981 Decoding shortened cyclic block codes
11/03/1981US4298956 Digital read recovery with variable frequency compensation using read only memories
11/03/1981US4298897 Buffered recording
10/1981
10/28/1981EP0038566A1 Magnetic recording and/or reproducing system for television signal
10/27/1981US4297729 Encoding and decoding of digital recordings
10/27/1981CA1111551A1 Circuit for forming a vertical synchronizing signal
10/07/1981EP0037260A2 Data regenerative system for NRZ mode signals
10/07/1981EP0037212A2 Methods and apparatuses for concealing error sample signals in digital television signals
10/06/1981US4293869 Circuit for reducing drop-out errors in a video signal derived from a recording device
09/1981
09/29/1981US4292684 Format for digital tape recorder
09/29/1981US4292655 System incorporating word synchronization for a serial signal sequence
09/29/1981US4292626 Manchester decoder
09/29/1981US4292593 Method of demodulating a quadphase coded data signal and receiver for carrying out the method
09/22/1981US4291344 Time base correcting system
09/22/1981US4291343 Frequency-ratio apparatus
09/22/1981US4291330 Video signal processing circuit for eliminating an interfering signal
09/21/1981EP0031375A4 Apparatus and an improved method for processing of digital information.
09/15/1981US4290090 Apparatus for and method of noise-free detection of inter-feature pauses to control selective replay in tape recording/reproduction systems
09/15/1981US4290081 Method and apparatus for stop frame reproduction in television picture fields each recorded on tape in a plurality of adjacent tracks
09/08/1981CA1108766A1 Digital signal transmitting system
09/08/1981CA1108709A1 Apparatus for digital data recovery from mass storage devices
09/01/1981US4287529 Time base error correcting apparatus
09/01/1981CA1108298A1 D.c. stabilized analog-to-digital converter
09/01/1981CA1108263A1 Magnetic signal detector
08/1981
08/25/1981US4286294 Recording/reproducing system
08/25/1981US4286290 Fast recovery squelch circuit for a video disc player
08/25/1981US4286281 Video format signal recording and reproducing device
08/25/1981CA1107858A1 System for recording and reading back data on a recording media
08/25/1981CA1107854A1 Dropout compensator with proportional duration dropout detector
08/19/1981EP0034055A2 Variable window data recovery apparatus and method
08/18/1981US4285014 Channel division recording/reproducing apparatus
08/18/1981US4284953 Character framing circuit
08/12/1981EP0033608A1 Sequential data block address processing circuits
08/11/1981US4283786 Digital transmission system
08/11/1981US4283785 Optical information recording apparatus
08/04/1981US4282552 Apparatus for reproducing a video signal including an address signal when the video tape moves at various speeds
08/04/1981US4282551 PCM Recording and reproducing apparatus
08/04/1981US4281709 Thermal heat pump
07/1981
07/29/1981EP0032855A1 Testing-device for a multi-channel digital recorder
07/28/1981US4281356 Magnetic disk memory
07/28/1981US4281355 Digital audio signal recorder
07/28/1981US4281354 Apparatus for magnetic recording of casual events relating to movable means
07/28/1981US4281295 Noise reducing apparatus
07/28/1981US4281291 Arrangement for detecting the binary values of bit cells having center transitions subject to phase distortion
07/22/1981EP0032324A1 Method of controlling the gain of circuits amplifying the signals produced by a read head associated with a record carrier, and device for carrying it out
07/22/1981EP0032271A1 Apparatus for writing digital information in a disc-shaped optically readable record carrier
07/22/1981EP0032232A2 Digital transmission system
07/21/1981US4280149 Equipment for preventing gaps between previously recorded and newly recorded information on an information carrier
07/21/1981US4280147 Digital television system and method
07/21/1981US4280099 Digital timing recovery system
07/21/1981CA1105607A1 Transmission system for colour television signals
07/14/1981US4279004 Method for controlling rotary memory device
07/14/1981US4278992 PCM Detector for video reproducer apparatus
07/14/1981CA1105129A1 Moire interference reducing circuit for fm video recorders
07/09/1981WO1981001901A1 Automated conversation system
07/08/1981EP0031375A1 Apparatus and an improved method for processing of digital information
07/07/1981US4277807 Recording digital signals
07/07/1981US4277795 Circuit arrangement for detecting a switching phase
07/07/1981US4276927 Plate type heat exchanger
07/07/1981CA1104719A1 Read apparatus
06/1981
06/30/1981US4276650 Method of synchronizing a quadphase receiver and clock synchronization device for carrying out the method
06/30/1981US4276647 High speed Hamming code circuit and method for the correction of error bursts
06/30/1981US4276604 Automatic attenuation circuit
06/30/1981US4276573 Pulse shaping network for disc read circuitry
06/30/1981CA1104247A1 Recording and playback method and apparatus
06/24/1981EP0030700A2 Arrangement for equalizing an unmodulated wide-band signal, in particular a colour-video signal, in a signal recording/reproducing system
06/23/1981US4275466 Block sync signal extracting apparatus
06/23/1981US4275457 Apparatus and method for receiving digital data at a first rate and outputting the data at a different rate
06/23/1981US4275428 Multitrack magnetic reading head
06/23/1981US4275268 Mixing apparatus
06/23/1981CA1103799A1 Write clock signal generator for use with rotating magnetic memory systems
06/17/1981EP0030300A1 Magnetic data recorder circuit and method of operating magnetic data recorders
06/16/1981US4274115 Apparatus for detecting recording and reproducing state
06/16/1981CA1103360A1 Plural channel error correcting methods and means using adaptive reallocation of redundant channels among groups of channels
06/16/1981CA1103356A1 Method of decoding waveforms
06/16/1981CA1103351A1 Binary coded digital optical record
06/09/1981CA1102916A1 Sync pattern encoding system for run-length limited codes
06/02/1981US4271522 Method of and apparatus for determining errors read from a magnetic recording medium
06/02/1981US4271438 Recovery and demodulation of a pulse width modulation encoded signal recorded on magnetic tape
06/02/1981CA1102447A1 Video signal processing apparatus
05/1981
05/27/1981EP0029226A1 System for processing audio PCM digital signals
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