The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2002
Filed:
Jan. 20, 1999
Joseph Lee Seccia, Quincy, IL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
A digital television transmitting system is presented having a recovery circuit for recovering non-return to zero (NRZ) data pulses and transport clock pulses from a biphase-mark serial data pulse stream and wherein the recovered NRZ data pulses and the recovered transport clock pulses are applied to modulation and amplifying circuits for broadcasting by an antenna. The recovery circuit includes a first circuit for receiving the biphase-mark serial pulse stream and providing therefrom a train of first clock pulses wherein the rising edge of each the biphase-mark pulse corresponds with a rising edge of one of the first clock pulses. A second circuit receives the biphase-mark serial data pulses and the first clock pulses for providing therefrom a train of de-serialized data pulses each having a rising edge corresponding with a rising edge of one of the first clock pulses. A third circuit receives the de-serialized data pulses and the first clock pulses and converts the de-serialized data pulses into recovered NRZ data pulses.