Method of transmitting digital HDTV signals
Patent 5430492 Issued on July 4, 1995. Estimated Expiration Date: 
July 4, 2012. 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.
July 4, 2012. 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.InventorAssigneeApplicationNo. 881769 filed on 05/12/1992US Classes:348/469, FORMAT348/487, Broadband (e.g., occupying two adjacent channels or parts thereof)348/723, TELEVISION TRANSMITTER CIRCUITRY370/206Quadrature carriersExaminersPrimary: Peng, John K.Attorney, Agent or FirmInternational ClassesH04N 005/222H04N 005/38 Foreign Application Priority Data1991-08-02 DEAbstractFor transmitting digital HDTV signals, the HDTV signal, which is either fed with a data rate of ࣘ20.48 Mbit/s or which is data-reduced to such a data rate of ࣘ20.48 Mbit/s by means of a method utilizing the psycho-optical phenomena of the human eye, is split at the transmitter side of a broadband transmission link operating on the DSR method into two data streams of ࣘ10.24 Mbit/s each, and is fed to the I/Q interface of the 4PSK modulator of the DSR transmission link. These two data streams whch are transmitted to the I/Q output of the 4PSK demodulator of the DSR transmission link are then further processed thereat.Other References
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