| Patent Number |
Title Of Patent |
Date Issued |
| 5016119 |
Video signal reproducing apparatus with two modes of keeping track of address |
May 14, 1991 |
| In an apparatus for use with a video tape having a longitudinal track in which an address signal is recorded and successive slant tracks in which a video signal and an information signal are recorded at predetermined intervals; a magnetic head unit reproduces the video signal, the in |
| 4802032 |
Servo for VTR drum motor with external reference signal phase modulation |
January 31, 1989 |
| A servo circuit is provided for use with a reproducing apparatus wherein an information signal is reproduced from an elongated slant track formed on a tape which is wrapped on the periphery of a guide drum having a rotary head. The servo circuit includes a circuit for detecting an interm |
| 4742519 |
Apparatus for decoding error correcting code |
May 3, 1988 |
| Apparatus for decoding an error detecting or correcting code constructed from digital information data and redundant data for detecting or correcting errors in the digital information data, the digital information data and redundant data being reproduced from a record medium by a pla |
| 4706111 |
Method of error modification for video data |
November 10, 1987 |
| In effecting error modification of component video data having predetermined relationships, for example in the playback side of a digital VTR for the Y, C.sub.R, and C.sub.B component system, a range of values that is allowable for the data indicated to be erroneous by its error flag |
| 4680763 |
Digital data recording and reproducing device |
July 14, 1987 |
| A digital data recording and reproducing device has an operation of error detection performed with respect to data with a code word length of M bits for m.sub.1 most significant bits and for m.sub.2 least significant bits. Error concealment is done for each of these error detections. Whe |
