Video recorder using extended tape tracks to record compressed chrominance
June 10, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3781463 Still picture program video recording composing and playback method and system Tape speed switching multiple track tape recorder Signal recording and/or reproducing technique Method and apparatus for recording digitally coded television signals Apparatus for recording a digital audio signal in a track with a video signal Apparatus for recording additional video signals in a helical scan operation Recording/reproducing apparatus for selectively processing monaural, stereo and bilingual signals Apparatus for recording a color video signal Digital video signal reproducing apparatus InventorApplicationNo. 07/210135 filed on 06/10/1988US Classes:386/27, Compressing when recording or decompressing when reproducing360/22, SPLITTING ONE INFORMATION SIGNAL FOR RECORDING ON PLURAL DISTINCT TRACKS OR REPRODUCING SUCH SIGNAL386/29, Having another signal386/39Including audio signalExaminersPrimary: Faber, AlanAssistant: Young, W. R. Attorney, Agent or FirmInternational ClassesH04N 9/81 (20060101)H04N 5/7824 (20060101) H04N 5/7826 (20060101) AbstractIn a video recorder having a drum with opposing dual record heads, successive fields of only the luminance signal (without the chrominance signal) are recorded by the heads during successive head rotations through 180°. The tape is overwrapped around the drum by a certain angle (over 216°, for example) so that the chrominance signal of each preceeding field may be compressed and recorded during each head rotation through the overwrap angle (i.e., from 180° to 216° in the example). Because the luminance signal is not mixed with the chrominance for recording (as has been usual), the luminance bandwidth may be increased by about 1 megaHertz to occupy the frequency band otherwise occupied by the color-under chrominance signal in the prior art. This provides a significant improvement in overall video image resolution. | |
