US Patent 7505398 OFDM modulation/demodulation system

Patent 7505398 was granted and assigned to Sony on March, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Sony

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7505398

Date of Patent

March 17, 2009

Patent Application Number

11892135

Date Filed

August 20, 2007

Patent Primary Examiner

‌

Hanh Nguyen

Patent abstract

A radio relay system (1) comprises a wireless camera (11) and a signal receiving relay station (12). The wireless camera (11) wirelessly transmits signals to the signal receiving relay station (12) by using the OFDM modulation method. The wireless camera (11) and the signal receiving relay station (12) perform energy dispersion at the time of transmission-line-coding/decoding a transport stream. The PRBS seed (initial value) to be used for the energy dispersion can be externally modified and the user can arbitrarily select a value for the seed.