Television signal transmission system
Patent 4943848 Issued on July 24, 1990. Estimated Expiration Date: 
April 25, 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.
April 25, 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 2716151 Television signal transmission system Method for transmitting a television signal by field to field processing Patent #: 4745460 InventorAssigneeApplicationNo. 186033 filed on 04/25/1988US Classes:348/436.1Including use of a subcarrierExaminersPrimary: Shepperd, John W.Attorney, Agent or FirmForeign Patent References
International ClassH04N 011/00Foreign Application Priority Data1983-03-18 JPAbstractA television signal transmission system is improved to be able to transmit a video signal having a frequency band wider than existing transmission frequency bands while maintaining compatibility with existing television systems. On the sending side, a wide-band luminance signal is frequency-shifted and inserted into a vacant frequency spectrum of a television signal in the existing television systems before transmission. Besides the conventional interlace scanning in the camera and display, progressive scanning can be used in the camera, the display, or both. | |
