Coherent averaging for measuring traveling wave tube amplifier nonlinearity

Details for Australian Patent Application No. 2004218611 (hide)

Owner The DIRECTV Group, Inc.

Inventors Chen, Ernest C

Agent Griffith Hack

Pub. Number AU-B-2004218611

Priority 60/510368 10.10.03 US

Filing date 6 October 2004

Wipo publication date 28 April 2005

Acceptance publication date 8 March 2007

International Classifications

H03F 3/58 (2006.01) Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

H04B 1/10 (2006.01) Details of transmission systems, not covered by a single one of groups - Means associated with receiver for limiting or suppressing noise or interference

H04B 7/185 (2006.01) Radio transmission systems, i.e. using radiation field - Space-based or airborne stations

H04B 17/00 (2006.01) Monitoring

H04L 27/227 (2006.01) Modulated-carrier systems - using coherent demodulation

H04L 27/36 (2006.01) Modulated-carrier systems

H04L 27/38 (2006.01) Modulated-carrier systems - Demodulator circuits

H04N 7/24 (2006.01) Television systems - Systems for the transmission of television signals using pulse code modulation

Event Publications

21 October 2004 Complete Application Filed

  Priority application(s): 60/510368 10.10.03 US

28 April 2005 Application Open to Public Inspection

  Published as AU-B-2004218611

8 March 2007 Application Accepted

  Published as AU-B-2004218611

22 November 2007 Standard Patent Sealed

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