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.

Date of Patent:
Oct. 04, 1988

Filed:

Jan. 21, 1987
Applicant:
Inventors:

William J Testin, Indianapolis, IN (US);

John F Teskey, Indianapolis, IN (US);

Assignee:

RCA Licensing Corporation, Princeton, NJ (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03J / ; H04N / ;
U.S. Cl.
CPC ...
455182 ; 455186 ; 455190 ; 3581931 ;
Abstract

A television receiver cable of tuning either 'air' channels in an 'air' tuning mode or 'cable' channels in a 'cable' tuning mode includes apparatus for automatically selecting the tuning mode. The auto-tuning mode apparatus operates in conjunction with apparatus for automatically programming a memory for storing tuning information for tunable channels. When the auto-programming mode is selected, the receiver is caused to operate in the cable tuning mode and a search is conducted for active cable channels. If a predetermined number of active cable channels is located, the receiver remains in the cable tuning mode and the memory is programmed with tuning information for all of the cable channels. If the predetermined number of cable channels is not located, the receiver is caused to operate in the air tuning mode and the memory is programmed with tuning information for all of the air channels.


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