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Class Information
Number: 360/73.11
Name: Dynamic magnetic information storage or retrieval > Automatic control of a recorder mechanism > Controlling the record > Speed > Linear carrier > Constant speed > By reproduced control signal and transport derived signal
Description: Subject matter wherein the speed of the record carrier is controlled by a signal reproduced from the record carrier and a signal sensed by a condition of the carrier advancing mechanism.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7259930 |
Apparatus for transporting a magnetic tape |
Aug. 21, 2007 |
| 7180694 |
Recording and/or reproducing apparatus, recording and/or reproducing method, recording medium and program |
Feb. 20, 2007 |
| 7130139 |
Write velocity identification |
Oct. 31, 2006 |
| 6956709 |
Write velocity identification in a PRML system |
Oct. 18, 2005 |
| 6914741 |
Servo writer |
Jul. 5, 2005 |
| 6836386 |
Calibration of tape drive velocity employing DC motor hall sensor |
Dec. 28, 2004 |
| 6424483 |
Control system of tape travel for a magnetic recording and reproducing apparatus |
Jul. 23, 2002 |
| 6317283 |
Methods and apparatus for calibration of a rotating scanner to a track recorded on a tape |
Nov. 13, 2001 |
| 6301069 |
Servo control apparatus utilizing clock signal and control data |
Oct. 9, 2001 |
| 6134073 |
Methods and apparatus for controlling motion of recording media |
Oct. 17, 2000 |
| 6072653 |
Methods and apparatus for calibration of a rotating scanner to a track recorded on a tape |
Jun. 6, 2000 |
| 6047398 |
Reproducing method, reproducing apparatus and recording and reproducing apparatus using the same reproducing method, and recording medium having the same method recorded therein |
Apr. 4, 2000 |
| 5959799 |
Method and apparatus for tracking control by checking timing between a rotary head reference position and an onset of reproducing tracking information recorded in each track |
Sep. 28, 1999 |
| 5760988 |
Tracking method and apparatus used in helical scan magnetic recording/reproducing system |
Jun. 2, 1998 |
| 5751511 |
Capstan phase control method for video cassette tape recorder |
May. 12, 1998 |
| 5745317 |
Apparatus for reproducing information from a tape-shaped recording medium using calculated address information |
Apr. 28, 1998 |
| 5726822 |
Motor control circuit which reduces the speed control gain and disables an oscillation preventing filter when the motor speed is not within a predetermined range |
Mar. 10, 1998 |
| 5689383 |
Apparatus and method for correcting capstan load in slow speed reproduction mode |
Nov. 18, 1997 |
| 5663845 |
Magnetic recording/reproducing apparatus |
Sep. 2, 1997 |
| 5648879 |
Method of and apparatus for controlling the phase of a video signal |
Jul. 15, 1997 |
| 5604648 |
Circuit and method for controlling speed and phase of VCR servo system |
Feb. 18, 1997 |
| 5594596 |
Video tape recorder carrying out field extraction recording and/or reproduction of a video signal |
Jan. 14, 1997 |
| 5548455 |
Motor control apparatus using speed and phase control in a first loop and phase control in a second loop series with the first loop |
Aug. 20, 1996 |
| 5467233 |
Magnetic recording and reproducing apparatus for reproducing a magnetic tape being fed at high speed |
Nov. 14, 1995 |
| 5383069 |
Data reproducing device with drop out detection of position information and means for compensating with tape speed detecting |
Jan. 17, 1995 |
| 5313343 |
Magnetic recording or reproducing apparatus |
May. 17, 1994 |
| 5276570 |
X-distance compensating circuit for adjusting head-switching time by controlling the synchronization of record and playback control pulses to/from a magnetic tape of a magnetic recording/repro |
Jan. 4, 1994 |
| 5270873 |
Signal recording and editing apparatus |
Dec. 14, 1993 |
| 5239245 |
Method of controlling rotational speeds and phases of a drum motor and a capstan motor in a VCR |
Aug. 24, 1993 |
| 5185680 |
Method for synchronizing recording and reproducing devices |
Feb. 9, 1993 |
| 5126894 |
Servo circuit for capstan motor |
Jun. 30, 1992 |
| 5124807 |
Dual deck videocassette recorder system |
Jun. 23, 1992 |
| 4951162 |
Tracking control system with pilot signal phase setting circuitry |
Aug. 21, 1990 |
| 4945426 |
Helical scan tracking system |
Jul. 31, 1990 |
| 4916560 |
Recording speed detecting apparatus |
Apr. 10, 1990 |
| 4899233 |
Apparatus for reproducing a magnetically recorded digital signal using a rotary head with automatic track finding signal extraction and selection for tracking control |
Feb. 6, 1990 |
| 4882641 |
Method for controlling mode of information signal reproducing apparatus |
Nov. 21, 1989 |
| 4811130 |
Information signal reproducing apparatus capable of determining a track pitch of a record bearing medium using a tracking error signal and a signal indicative of the moving speed of the medium |
Mar. 7, 1989 |
| 4811131 |
Method and apparatus for scanning and recovering information from a record medium |
Mar. 7, 1989 |
| 4786985 |
Method and apparatus for extracting binary signals included in vertical blanking intervals of video signals |
Nov. 22, 1988 |
| 4682247 |
Tape speed determining apparatus for video signal reproducing apparatus |
Jul. 21, 1987 |
| 4679098 |
Video tape transport servo for variable tape speed control |
Jul. 7, 1987 |
| 4605976 |
Recording and/or reproducing system for a 4-head type recording and/or reproducing apparatus |
Aug. 12, 1986 |
| 4577243 |
Control signal generating circuit for a magnetic recording and/or reproducing apparatus |
Mar. 18, 1986 |
| 4568986 |
Variable speed playback controller for a video tape recorder |
Feb. 4, 1986 |
| 4521815 |
Reproducing apparatus capable of performing high-speed reproduction of a video signal |
Jun. 4, 1985 |
| 4517611 |
Video recording system |
May. 14, 1985 |
| 4510535 |
Video insert editing with control signals derived off tape or from the insert |
Apr. 9, 1985 |
| 4472749 |
Constant speed reel driven magnetic tape in cue or review mode |
Sep. 18, 1984 |
| 4400745 |
Tape transport |
Aug. 23, 1983 |
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