| Patent Number |
Title Of Patent |
Date Issued |
| 7263272 |
Digital/analog compatible video tape recorder |
August 28, 2007 |
| An apparatus for recording/reproducing video and audio signals on/from a recording medium includes a first and second tuner which receive a video signal of a first and second format transmitted by broadcasting, respectively; a recorder which records the video signal of the first form |
| 6798979 |
Digital/analog compatible video tape recorder |
September 28, 2004 |
| A helical scanning video tape recorder for recording and reproducing video signals and audio signals to/from a magnetic tape. The video tape recorder includes an analog signal reproducing mode in which an FM luminance signal and a down-converted chrominance signal are reproduced from the |
| 6459541 |
Magnetic recording and reproducing apparatus arranged to save electric power consumed in detecti |
October 1, 2002 |
| A magnetic recording and reproducing apparatus arranged to use a magnetic tape. The apparatus operates to derive the current taken-up position of the magnetic tape from the signals that are proportional to the rotation frequencies of a capstan motor, a supply reel and a take-up reel. Onl |
| 6272285 |
Digital/analog compatible video tape recorder |
August 7, 2001 |
| A VTR compatible with the current analog VTR and capable of recording and reproducing digital signals, determines the presence or absence of recorded digital signals and selects an operating mode for recording and reproducing in accordance therewith. |
| 6141172 |
Magnetic recording and reproducing apparatus arranged to save electric power consumed in detecti |
October 31, 2000 |
| A magnetic recording and reproducing apparatus arranged to use a magnetic tape. The apparatus operates to derive the current taken-up position of the magnetic tape from the signals that are proportional to the rotation frequencies of a capstan motor, a supply reel and a take-up reel. Onl |
| 6104567 |
Recording and reproducing apparatus including a tracking apparatus with a steady speed deviation |
August 15, 2000 |
| A tracking apparatus for a helical scan magnetic recording/reproducing system includes a rotation speed controller for controlling the rotation speed of a capstan motor which transports a magnetic tape, a speed deviation generator for applying a deviation to the rotation speed, an en |
| 6021016 |
Magnetic recording and reproducing apparatus arranged to save electric power consumed in detecti |
February 1, 2000 |
| A magnetic recording and reproducing apparatus arranged to use a magnetic tape. The apparatus operates to derive the current taken-up position of the magnetic tape from the signals that are proportional to the rotation frequencies of a capstan motor, a supply reel and a take-up reel. Onl |
| 5978546 |
Digital/analog compatible video tape recorder |
November 2, 1999 |
| A VTR compatible with the current analog VTR and capable of recording and reproducing digital signals identifies the type of a tape cassette by the presence or absence of a cassette identification hole formed in a digital recording tape cassette determines tape speed for a recording mode |
| 5930274 |
Information recording and reproduction apparatus to be controlled by temporal information |
July 27, 1999 |
| An information recording and reproduction apparatus for recording and reproducing the information supplied through the transmission line is capable of protecting the copyright by limiting the reproduction of the recorded information. A main information signal supplied through the tra |
| 5760988 |
Tracking method and apparatus used in helical scan magnetic recording/reproducing system |
June 2, 1998 |
| A tracking method and apparatus used in a helical scan magnetic recording/reproducing system is based on an automatic tracking control using an envelope detection signal of a reproduced signal. The tracking apparatus is provided with a circuit for controlling the rotation speed of a |
| 5699370 |
Information recording and reproduction apparatus to be controlled by temporal information |
December 16, 1997 |
| An information recording and reproduction apparatus for recording and reproducing the information supplied through the transmission line is capable of protecting the copyright by limiting the reproduction of the recorded information. A main information signal supplied through the tra |
| 5699206 |
Magnetic recording and reproducing apparatus arranged to save electric power consumed in detecti |
December 16, 1997 |
| A magnetic recording and reproducing apparatus arranged to use a magnetic tape. The apparatus operates to derive the current taken-up position of the magnetic tape from the signals that are proportional to the rotation frequencies of a capstan motor, a supply reel and a take-up reel. Onl |
| 5559414 |
Control unit of direct-current motor |
September 24, 1996 |
| A control unit of a direct-current motor used in a magnetic recording and reproducing device or the like, which generates a digital error signal by processing a rotational frequency signal (a rotational frequency signal and a rotational phase signal when necessary) detected from a motor |
