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:
Aug. 11, 1987
Filed:
May. 30, 1985
Applicant:
Inventors:
Akinori Masuko, Fukaya, JP;
Wataru Kuroiwa, Fukaya, JP;
Shouji Uehara, Yokohama, JP;
Tsutomu Uekusa, Funabashi, JP;
Robert M Rast, Englewood, CO (US);
W Sherwood Campbell, Littleton, CO (US);
Assignees:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
American Television & Communications Corp., Englewood, CO (US);
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 86 ; 358 84 ; 358349 ; 455-4 ;
Abstract
An external control unit for a CATV system has a CPU and a RAM with many kinds of memory maps. Reference data to be stored in the memory maps is transmitted from a central station. When a subscriber requests the tuning of a TV channel for a pay program to a converter tuner, the CPU in the external control unit can work, using the reference data.