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)
07/1979
07/03/1979CA1057849A1 Data read-write apparatus for a magnetic recording medium
07/03/1979CA1057848A1 Color killer circuit system for video tape recorder
06/1979
06/26/1979CA1057393A1 Video signal reproducing apparatus
06/19/1979US4158855 Dropout compensator with proportional duration dropout detector
06/19/1979CA1056947A1 Color video signal recording and/or reproducing system
06/19/1979CA1056945A1 System for recording and/or reproducing a video signal
06/19/1979CA1056944A1 Method of detecting alterations in signals corresponding to the read-out of a data carrier and system for implementing such a method
06/12/1979CA1056509A1 Enhanced error correction
06/05/1979US4157574 Noise reduction circuit for multiple gap magnetic head for automatic typewriter
06/05/1979US4157573 Digital data encoding and reconstruction circuit
06/05/1979US4157571 Frame-by-frame memory display system
06/05/1979US4157567 Dropout detecting circuitry for a frequency modulated carrier, particularly for a video recorder
06/05/1979US4157565 Apparatus for eliminating time base errors from an information signal
06/05/1979CA1055847A1 Method and apparatus for decoding diphase signals
05/1979
05/29/1979CA1055606A1 Apparatus for correcting the timing of a signal derived from a dynamic magnetic record
05/29/1979CA1055604A1 Magnetic recording and/or reproducing system
05/22/1979US4156257 Motor control circuit for tape drive unit
05/22/1979CA1054789A1 Audio-visual teaching system
05/15/1979US4155105 Write clock signal generator for use with rotating magnetic memory systems
05/15/1979US4155041 System for reducing noise transients
05/15/1979CA1054707A1 Method of detecting alterations in read out signals, and apparatus for implementing the same
05/15/1979CA1054706A1 Color video signal reproducing apparatus
05/15/1979CA1054704A1 Drop-out compensator
05/15/1979CA1054687A1 Device for compensating for signal dropouts in an angle-modulation signal
05/08/1979CA1054256A1 Frequency compensation apparatus for disc-shaped record reproduction
05/08/1979CA1054254A1 Signal transferring
05/08/1979CA1054232A1 Phase detector having a 360.degree. linear range for periodic and aperiodic input pulse streams
05/01/1979US4152736 Magnetic disk file
05/01/1979US4152733 Playback apparatus
05/01/1979US4152731 Read circuit for distinguishing false peaks in an alternating current playback signal
05/01/1979US4152695 Method of writing information relating to faults in a magnetic recording medium
04/1979
04/24/1979US4151571 Method of writing addresses on a magnetic recording medium
04/24/1979US4151565 Discrimination during reading of data prerecorded in different codes
04/24/1979US4151471 System for reducing noise transients
04/17/1979US4150404 Device for transferring digital information
04/17/1979US4150395 Time base error correction system
04/17/1979CA1052907A1 Reproduction of optical sound tracks
04/17/1979CA1052904A1 Data storage track padding apparatus
04/03/1979US4148098 Data transfer system with disk command verification apparatus
04/03/1979US4148078 Noise reduction apparatus
04/03/1979US4148077 Method of playing back video records through television receiver operating at a different line standard
03/1979
03/27/1979US4146909 Sync pattern encoding system for run-length limited codes
03/27/1979US4146743 Adaptive sampling decoder-encoder apparatus and method
03/27/1979US4146099 Signal recording method and apparatus
03/27/1979CA1051558A1 Method and apparatus for dynamically controlling read/write operations in a peripheral subsystem
03/27/1979CA1051528A1 Data recovery system resistant to frequency deviations
03/20/1979US4145758 Error checking method and apparatus for digital data in optical recording systems
03/20/1979US4145705 Time base correction of color video signal from playback apparatus
03/20/1979US4145683 Single track audio-digital recorder and circuit for use therein having error correction
03/20/1979US4145664 Audio signal compression and expansion system
03/20/1979CA1051116B Low redundancy recording and/or playback systems
03/06/1979US4143407 Magnetic data storage and retrieval system
03/06/1979US4143406 Pcm recording and reproducing system
03/06/1979CA1050157A1 Color video reproducing apparatus
02/1979
02/27/1979US4142215 Tape drive tester
02/27/1979US4142174 High speed decoding of Reed-Solomon codes
02/27/1979US4141494 Digital code reader
02/27/1979CA1049650A1 Noise eliminating circuit for video television signal
02/20/1979US4141046 Floppy disc data separator for use with single density encoding
02/20/1979US4141039 Recorder memory with variable read and write rates
02/13/1979US4139873 Method and apparatus for video signal recording
02/13/1979US4139870 Circuit for demodulating a pulse width modulated signal
02/13/1979CA1048631A1 Squelch circuit
02/06/1979US4138694 Video signal recorder/reproducer for recording and reproducing pulse signals
01/1979
01/30/1979US4137504 Digital filter
01/30/1979US4137430 System for recording a signal with tracing and tracking distortion compensation on a record disc
01/23/1979US4136364 Multi-state wow and flutter reduction system and method
01/23/1979US4136314 Adaptive signal weighting system
01/09/1979US4134139 Method and arrangement for writing and reading bit sequences
01/09/1979US4134138 Method of reading addresses on a magnetic recording medium and apparatus for putting it into effect
01/09/1979US4134126 Color recorder having means for reducing luminance crosstalk in displayed image
01/02/1979US4133009 Color video tape recording/playback system
01/02/1979CA1045710A1 Apparatus for reproducing color video signals
12/1978
12/26/1978US4131920 Closed-clock writing system for a rotating magnetic memory
12/26/1978US4131912 Apparatus for recording and reproducing video signals on a magnetic tape movable at different speeds
12/20/1978EP0000001A1 Thermal heat pump
12/19/1978US4130739 Circuitry for compression of silence in dictation speech recording
12/19/1978CA1044801A1 Pre-recorded digital data compensation system
12/19/1978CA1044800A1 Data resynchronization
12/12/1978US4129888 Data recording and/or reproducing system
12/12/1978CA1044339A1 Band pass filter circuit
12/05/1978CA1043901A1 Control of automatic color control and color killer circuits in video signal reproducing apparatus
11/1978
11/28/1978US4127879 Data read-write apparatus for a magnetic recording medium
11/28/1978US4127878 Magnetic tape recorder/reproducer for ratio recording with synchronized internal and external clock rates
11/21/1978US4126887 Method of controlling rotary memory
11/14/1978US4125865 Recording system
11/14/1978CA1042547A1 Disc interface location
11/07/1978US4124820 Asynchronous digital delay line
11/07/1978US4124784 Motion picture sound system
11/07/1978US4124778 Digital frame synchronizing circuit
10/1978
10/31/1978US4123787 Electronic and kinematic contrivance for a selective recording of signals on a single tape
10/31/1978US4123774 Color signal encoding methods and apparatus for video recording and playback
10/31/1978CA1041655A1 Colour television system
10/24/1978US4122501 System for recording and reading back data on a recording media
10/24/1978US4122397 Apparatus and method for timing recovery from a pseudo-ternary signal
10/24/1978CA1041214A1 Missing clock detection circuit
10/10/1978US4119812 Signal defect detection and compensation with signal de-emphasis
10/10/1978CA1040307A1 Magnetic recording and/or reproducing apparatus
10/03/1978US4118738 Time base error corrector
09/1978
09/19/1978US4115821 Nonrecorded section detection in a tape recorder apparatus
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