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Class Information
Number: 360/73.12
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
Description: Subject matter wherein a constant speed record carrier advancing mechanism is controlled by a signal reproduced from the carrier.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7480114 |
Synchronous servo channel for tape drive systems |
Jan. 20, 2009 |
| 7365929 |
Synchronous servo channel for tape drive systems |
Apr. 29, 2008 |
| 7245450 |
Synchronous servo channel for longitudinal position detection and position error signal generation in tape drive systems |
Jul. 17, 2007 |
| 6301069 |
Servo control apparatus utilizing clock signal and control data |
Oct. 9, 2001 |
| 6236526 |
Audio cassette player with permanently installed cassette |
May. 22, 2001 |
| 6198588 |
Data Storage |
Mar. 6, 2001 |
| 6147829 |
Magnetic tape with a track configuration and apparatus for cooperation with such a magnetic tape |
Nov. 14, 2000 |
| 6134073 |
Methods and apparatus for controlling motion of recording media |
Oct. 17, 2000 |
| 5867330 |
Reproducing apparatus detecting pilot signals by binary data processing |
Feb. 2, 1999 |
| 5847892 |
Servoing and formatting magnetic recording tape in an arcuate scanner system |
Dec. 8, 1998 |
| 5812337 |
Magnetic disk device using reproducing head having a large reproducing width |
Sep. 22, 1998 |
| 5777817 |
VCR tracking control method and apparatus comprising a microcomputer for generating a capstan speed command based on a tracking error expressed as a difference value of freguency components of |
Jul. 7, 1998 |
| 5771129 |
Method and apparatus for detecting and matching the recorded speed of previously recorded tape |
Jun. 23, 1998 |
| 5754356 |
Tracking error detector with comparison of amplitude detected pilot signals leaking in from tracks adjacent to the target track |
May. 19, 1998 |
| 5751511 |
Capstan phase control method for video cassette tape recorder |
May. 12, 1998 |
| 5726826 |
Capstanless helical drive system |
Mar. 10, 1998 |
| 5680269 |
Method and apparatus for controlling media linear speed in a helical scan recorder by reading servo information just after writing the servo information |
Oct. 21, 1997 |
| 5671100 |
VCR tracking control method and apparatus for generating a capstan motor drive signal based on the capstan speed control valve |
Sep. 23, 1997 |
| 5619385 |
Video tape recorder carrying out field extraction recording and/or reproduction of a video signal |
Apr. 8, 1997 |
| 5471352 |
Recording/playback apparatus in which head and tape are held in intermittent contact during rapid search |
Nov. 28, 1995 |
| 5461519 |
Recording and reproducing apparatus with helical scan tracking |
Oct. 24, 1995 |
| 5408505 |
Method and apparatus for process control, tension control, and testing of magnetic media |
Apr. 18, 1995 |
| 5383069 |
Data reproducing device with drop out detection of position information and means for compensating with tape speed detecting |
Jan. 17, 1995 |
| 5325246 |
Automatic tracking method for helical scan magnetic tape recorder using reproduced timing signal to sample two out-of-phase reference signals |
Jun. 28, 1994 |
| 5299073 |
Video tape recorder speed control |
Mar. 29, 1994 |
| 5289323 |
Autotracking for a helical scan magnetic tape recorder |
Feb. 22, 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 |
| 5270884 |
Servo control method in the absence of tape control signals |
Dec. 14, 1993 |
| 5182681 |
Rotating head magnetic recording and reproducing device having automatic tracking control function |
Jan. 26, 1993 |
| 4982305 |
Tape recorder with automatic pause mode setting |
Jan. 1, 1991 |
| 4916554 |
Information signal reproducing apparatus having a tracking control system |
Apr. 10, 1990 |
| 4885647 |
Apparatus for reproducing a digital signal |
Dec. 5, 1989 |
| 4812926 |
Automatic tracking device for VCR with capstan motor controlled by color signal |
Mar. 14, 1989 |
| 4811129 |
Method and an apparatus for detecting tape speed of recording |
Mar. 7, 1989 |
| 4811128 |
Digital signal recording and reproducing apparatus having rotary magnetic heads |
Mar. 7, 1989 |
| 4794473 |
Fast mode reel servo in a magnetic recording/reproducing apparatus |
Dec. 27, 1988 |
| 4780774 |
Rotary head type reproducing apparatus having a head shifter for accurately shifting the rotary head |
Oct. 25, 1988 |
| 4751586 |
Rotary head tape transport servo system having high speed servo lock capability |
Jun. 14, 1988 |
| 4691256 |
Information reproducing apparatus |
Sep. 1, 1987 |
| 4683503 |
Information signal reproducing apparatus having means for discriminating a track pitch and selecting the reproduction mode speed |
Jul. 28, 1987 |
| 4680648 |
Information signal reproducing apparatus |
Jul. 14, 1987 |
| 4651232 |
Method of controlling apparatus for recording and/or reproducing on a record medium |
Mar. 17, 1987 |
| 4633333 |
Detection of instantaneous speed variations in a tape drive |
Dec. 30, 1986 |
| 4630142 |
Apparatus for reproducing a digital signal |
Dec. 16, 1986 |
| 4541023 |
Resolver with sequential frequency and phase correction |
Sep. 10, 1985 |
| 4532561 |
Playback speed control system |
Jul. 30, 1985 |
| 4527207 |
Tape speed control for producing a master tape carrying a digital signal |
Jul. 2, 1985 |
| 4497000 |
Magnetic recording/reproducing apparatus |
Jan. 29, 1985 |
| 4485417 |
PCM Recording and reproducing device |
Nov. 27, 1984 |
| 4426668 |
High-speed tape transport system |
Jan. 17, 1984 |
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