| Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980) |
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| 05/07/1985 | US4516164 Apparatus for decoding video address code signals |
| 05/07/1985 | US4516163 Digital information signal recording system |
| 05/07/1985 | CA1186766A1 Data reading apparatus for data transmission |
| 05/07/1985 | CA1186765A1 Pcm signal recording circuit |
| 05/07/1985 | CA1186752A1 Digital phase-locked loop |
| 05/02/1985 | EP0139443A2 Data error detection and correction circuit |
| 05/02/1985 | EP0139332A2 Apparatus for reproducing information from a disc-shaped optically readable record carrier |
| 05/02/1985 | EP0138981A1 Improved error protection of linearly coded digital signals. |
| 05/02/1985 | EP0138966A1 Video cassette play counting, storing and reading system |
| 04/30/1985 | US4514771 Method and apparatus for improving disk storage capacity |
| 04/30/1985 | CA1186408A1 Digital recording and reproducing apparatus |
| 04/30/1985 | CA1186407A1 Video disc player with selectively enabled audio signal expander circuitry |
| 04/25/1985 | WO1985001824A1 Process for evaluating a subcode |
| 04/24/1985 | EP0138275A2 Apparatus for reproducing information from an optically readable record carrier |
| 04/24/1985 | EP0138274A1 Apparatus for reproducing digital information via a transmission medium |
| 04/24/1985 | EP0138246A2 Disc playback apparatus |
| 04/24/1985 | EP0138229A2 Apparatus for transcribing digital data |
| 04/24/1985 | EP0137855A1 Data transfer system using digital disc |
| 04/24/1985 | EP0137801A1 Device for the protection of magnetic tapes, or other recording media, or television or radio broadcastings against unauthorized reading and/or reproduction |
| 04/23/1985 | US4513392 Method and apparatus for generating a repetitive serial pattern using a recirculating shift register |
| 04/23/1985 | US4513329 Manchester decoder clock multiplier |
| 04/23/1985 | US4513242 Electronic impedance device for providing a variable impedance |
| 04/17/1985 | EP0137721A1 Digital data recording and reproducing devices |
| 04/17/1985 | EP0137719A2 A video signal reproducing apparatus |
| 04/17/1985 | EP0137425A1 Method for detecting a subcode |
| 04/17/1985 | EP0137346A2 Rotary head type digital information signal recording and reproducing apparatus and tracking control method therein |
| 04/16/1985 | US4512006 Optical type information read/write apparatus |
| 04/16/1985 | US4512005 Information reproducing apparatus in a recording disc player |
| 04/16/1985 | US4511992 System for reconstituting, by filtering, an analog signal from a pseudo-analog signal |
| 04/16/1985 | US4511963 Emulation of special purpose magnetic tape data recording equipment by a general purpose processor |
| 04/16/1985 | US4511933 Method and apparatus for recording a digital information signal |
| 04/10/1985 | EP0136882A1 Data processing circuit for digital audio system |
| 04/10/1985 | EP0136785A1 Position control apparatus for controlling positions of rotary heads with respect to a recording medium |
| 04/10/1985 | EP0136604A2 Decoding method and system. |
| 04/09/1985 | US4510536 Signal conditioning method and apparatus for FM code signal |
| 04/09/1985 | CA1185331A1 Wave-shaping circuit for digital signal |
| 04/03/1985 | EP0135886A1 Magnetic recording apparatus |
| 04/02/1985 | US4509155 Circuit arrangement for a disk player for reproducing information prerecorded in the form of pits |
| 04/02/1985 | US4509138 Word processor |
| 04/02/1985 | US4509083 Head tracking control for video tape recorder |
| 04/02/1985 | US4509082 Circuit arrangement for generating the vertical synchronizing information in a magnetic video tape apparatus |
| 04/02/1985 | US4509078 Dropout compensation circuit |
| 04/02/1985 | CA1185011A1 Information signal reproducing apparatus |
| 03/28/1985 | WO1985001402A1 Sync pattern encoding system for data sectors written on a storage medium |
| 03/28/1985 | WO1985001382A1 Optically storing digital data |
| 03/28/1985 | WO1985001381A1 Preformatted diagnostic information recording disk |
| 03/28/1985 | WO1985001380A1 Optical disk format employing resynchronizable data sectors |
| 03/28/1985 | WO1985001377A1 Apparatus for reproducing audio signal |
| 03/28/1985 | WO1985001370A1 Shared encoder/decoder circuits for use with error correction codes of an optical disk system |
| 03/28/1985 | WO1985001369A1 Error detection and correction in an optical storage system |
| 03/27/1985 | EP0134817A1 Method of transferring digital signal |
| 03/26/1985 | US4507773 High efficiency precision laser beam switch |
| 03/26/1985 | US4507763 Optical information recording and/or reproducing apparatus and optical record medium for use in such apparatus |
| 03/26/1985 | US4507693 Control apparatus for rotation type storage device |
| 03/26/1985 | US4507687 Horizontal sync pulse control circuit for video tape recorder utilizing pulse code modulation |
| 03/26/1985 | US4507686 Television signal recording and reproducing apparatus |
| 03/26/1985 | CA1184678A1 Method for error correction |
| 03/19/1985 | US4506313 Time axis correction device for a signal reproduced from a recording medium |
| 03/19/1985 | US4506306 Interleaved redundancy in data recording |
| 03/19/1985 | US4506305 Method for detecting a fault in a data recording system read channel |
| 03/19/1985 | US4506303 Optical data recorder system |
| 03/19/1985 | CA1184262A1 Signal transfer device having a transfer characteristic which is adjustable in steps |
| 03/12/1985 | US4504960 Data reading apparatus for data transmission |
| 03/12/1985 | US4504948 Syndrome processing unit for multibyte error correcting systems |
| 03/12/1985 | US4504873 Identification field scan apparatus |
| 03/12/1985 | US4504872 Digital maximum likelihood detector for class IV partial response |
| 03/12/1985 | US4504871 Magnetic media test fixture apparatus |
| 03/12/1985 | US4504870 Automatic level adjustment with means for minimizing drop-out effects |
| 03/12/1985 | CA1183953A1 Adaptive rate card data reproducing and storing apparatus |
| 03/12/1985 | CA1183952A1 Protection against the re-transfer of recorded information of a data carrier |
| 03/12/1985 | CA1183950A1 Method for processing an information signal and means for carrying out the method |
| 03/06/1985 | EP0133790A1 Disc playback apparatus |
| 03/06/1985 | EP0133726A1 Video translation system for translating a binary coded data signal into a video signal and vice versa |
| 03/06/1985 | EP0133706A2 Method and system for storing and retrieving multiple channel sampled data |
| 03/05/1985 | US4503472 Bipolar time modulated encoder/decoder system |
| 03/05/1985 | US4503471 Control arrangement for electronic appliance |
| 03/05/1985 | US4503420 Arrangement for encoding and decoding information signals |
| 02/26/1985 | US4502142 Apparatus for detecting errors in a digital data stream encoded in a double density code |
| 02/26/1985 | US4502036 Encoding and decoding systems for binary data |
| 02/26/1985 | CA1183262A1 System for transmitting digital information |
| 02/19/1985 | US4501014 Method for eliminating unwanted acoustic signals in audio programs to be edited for reproduction |
| 02/19/1985 | US4501000 Method of coding binary data |
| 02/19/1985 | US4500965 For reading and writing sequential data records |
| 02/19/1985 | US4500871 Method for coding binary data and a device decoding coded data |
| 02/19/1985 | CA1182913A1 Disc player |
| 02/19/1985 | CA1182904A1 Videorecorder for recording a vision carrier that is frequency modulated with a video signal |
| 02/14/1985 | WO1985000687A1 Digital time base correction |
| 02/13/1985 | EP0133067A1 Method and device for the regeneration of reproduced data signals recorded on an optical disc |
| 02/13/1985 | EP0133049A1 Video signal recording and reproducing apparatus |
| 02/13/1985 | EP0133048A2 Noise reducing system for video signal |
| 02/13/1985 | EP0132852A2 Magnetic reproducing apparatus |
| 02/12/1985 | US4499572 Method for reading information or defect out of rotating disc |
| 02/12/1985 | US4499570 Dropout circuit arrangement for converting an information signal into a rectangular signal |
| 02/12/1985 | US4499508 Digital magnetic recording |
| 02/12/1985 | US4499507 Data reproducing apparatus for reproducing digital data recorded on multi-tracks |
| 02/12/1985 | US4499503 Video format signal recording and reproduction system |
| 02/12/1985 | US4499454 Method and apparatus for encoding a digital signal with a low DC component |
| 02/12/1985 | CA1182561A1 Digital audio disc player |
| 02/05/1985 | US4498178 Data error correction circuit |
| 02/05/1985 | US4498175 Error correcting system |