Robert B. Graybill

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Woodstock, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and methods for including codes in audio signals
- Patent number 7,961,881
- Issue date Jun 14, 2011
- Arbitron Inc.
- James M. Jensen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and methods for including codes in audio signals
- Patent number 6,996,237
- Issue date Feb 7, 2006
- Arbitron Inc.
- James M. Jensen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and methods for including codes in audio signals
- Patent number 6,421,445
- Issue date Jul 16, 2002
- Arbitron Inc.
- James M. Jensen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and methods for including codes in audio signals and deco...
- Patent number 5,764,763
- Issue date Jun 9, 1998
- James M. Jensen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and methods for including codes in audio signals and deco...
- Patent number 5,450,490
- Issue date Sep 12, 1995
- The Arbitron Company
- James M. Jensen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and methods for including codes in audio signals
- Publication number 20060222179
- Publication date Oct 5, 2006
- James M. Jensen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Apparatus and methods for including codes in audio signals
- Publication number 20030081781
- Publication date May 1, 2003
- James M. Jensen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE