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Class Information
Number: 386/9
Name: Television signal processing for dynamic recording or reproducing > Processing of color television signal for dynamic recording or reproducing > Signal amplitude level control
Description: Subject matter comprising means for controlling the instantaneous amplitude level or the envelope level of the color television signal during recording or reproducing.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6285765 |
Method and apparatus for reducing effects of copy protection of composite video signal |
Sep. 4, 2001 |
| 6172713 |
Color television system determination circuit |
Jan. 9, 2001 |
| 6173110 |
Magnetic recording and reproduction apparatus having a recording characteristic correction function of a video signal |
Jan. 9, 2001 |
| 6134373 |
System for recording and reproducing a wide bandwidth video signal via a narrow bandwidth medium |
Oct. 17, 2000 |
| 6101312 |
Automatic picture quality controller |
Aug. 8, 2000 |
| 6014180 |
Automatic gain control loop circuit |
Jan. 11, 2000 |
| RE36339 |
Circuit for tape duplication in video tape recorder |
Oct. 12, 1999 |
| 5913007 |
Envelope detection apparatus for video cassette recorder |
Jun. 15, 1999 |
| 5909531 |
Television signal recording/reproducing apparatus and method with DC shifter |
Jun. 1, 1999 |
| 5875278 |
Recording/reproducing device comprising a plurality of audio channels and a rotary encoder which controls two independent level adjusting means |
Feb. 23, 1999 |
| 5745635 |
Adaptive deemphasis and reemphasis of high frequencies in video tape recording, utilizing a recorded control signal |
Apr. 28, 1998 |
| 5724470 |
Television signal recording/reproducing apparatus and method with DC shifter |
Mar. 3, 1998 |
| 5673355 |
Deemphasis & Subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal |
Sep. 30, 1997 |
| 5606424 |
Simple high-band record modulation circuit in 8MM video tape recorder |
Feb. 25, 1997 |
| 5598273 |
Recording control device and method utilizing a test signal having multiple frequencies |
Jan. 28, 1997 |
| 5596418 |
Deemphasis and subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal |
Jan. 21, 1997 |
| 5579119 |
Recording signal control apparatus capable of optimizing recording conditions for magnetic recording medium |
Nov. 26, 1996 |
| 5532829 |
Automatic color control circuit having a control signal storing capacitor |
Jul. 2, 1996 |
| 5448367 |
Apparatus for automatically controlling generation of a head switching signal |
Sep. 5, 1995 |
| 5432612 |
Multi-mode video signal playback and display device |
Jul. 11, 1995 |
| 5430495 |
Video playback apparatus capable of varying caption brightness based on audio level |
Jul. 4, 1995 |
| 5430551 |
Video recorder with distortion corrector circuit |
Jul. 4, 1995 |
| 5418619 |
Apparatus and method for selectively adapting a playback characteristic to meet video performance requirements |
May. 23, 1995 |
| 5404230 |
Color burst phase correcting color signal reproducing circuit |
Apr. 4, 1995 |
| 5386296 |
Chroma burst detection system |
Jan. 31, 1995 |
| 5377012 |
Color signal processing circuit for a video cassette recorder |
Dec. 27, 1994 |
| 5371601 |
Luminance signal unfolding and reemphasizing circuit |
Dec. 6, 1994 |
| 5347319 |
Circuit for regulating the color subcarrier amplitude in a video recorder |
Sep. 13, 1994 |
| 5333060 |
Video signal processing circuit of a video signal recorder/reproducer |
Jul. 26, 1994 |
| 5321518 |
Video signal recording and reproducing apparatus using an added specific signal during recording |
Jun. 14, 1994 |
| 5287174 |
Vertical resolution correcting circuit for video signal |
Feb. 15, 1994 |
| 5274458 |
Video camera |
Dec. 28, 1993 |
| 5249063 |
Information signal processing device for offset removal and signal identification of color difference signals |
Sep. 28, 1993 |
| 5235431 |
Circuit used in a camcorder for monitoring the recorded state of a tape during recording by simultaneous playing back of the tape |
Aug. 10, 1993 |
| 5233435 |
Tape recording system for video cassette tape recorder |
Aug. 3, 1993 |
| 5227891 |
Method of recording fine color video signal on optical recording media and method of reproducing thus recorded fine color video signal |
Jul. 13, 1993 |
| 5223946 |
Apparatus using comparator to detect drop-out of recorded video signal |
Jun. 29, 1993 |
| 5218447 |
Method and apparatus for identifying the reproduction mode of a video tape recorder |
Jun. 8, 1993 |
| 5206738 |
Magnetic recording apparatus having a means for determining recording current |
Apr. 27, 1993 |
| 5194963 |
Dual deck videocassette recorder system |
Mar. 16, 1993 |
| 5187590 |
Luminance signal recording circuit and method for maintaining compatibility in reproducing between different video systems |
Feb. 16, 1993 |
| 5184228 |
Recording circuit for mirror mother tape |
Feb. 2, 1993 |
| 5161030 |
Method and circuit for enhancing image quality of a video tape recorder (VTR) using motion adaptive spectrum folding method |
Nov. 3, 1992 |
| 5144434 |
Video signal processing device using look-up table |
Sep. 1, 1992 |
| 5136392 |
Frequency demodulating circuit for avoiding black reversing phenomenon |
Aug. 4, 1992 |
| 5130810 |
Method and apparatus for processing a video signal so as to prohibit the making of acceptable videotape recordings |
Jul. 14, 1992 |
| 5121266 |
Magnetic recording/reproducing apparatus |
Jun. 9, 1992 |
| 5083211 |
Method and apparatus for optimizing video recording and reproduction |
Jan. 21, 1992 |
| 5063452 |
Magnetic recording and/or reproducing apparatus having means for preventing audio-to-video crosstalk and noise generation |
Nov. 5, 1991 |
| 5057934 |
Circuit for tape duplication in video tape recorder |
Oct. 15, 1991 |
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