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:
Dec. 16, 1997
Filed:
Dec. 13, 1994
Applicant:
Inventor:
Hitoshi Yoshinobu, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
348-55 ; 380-7 ; 380 10 ; 380 20 ;
Abstract
A broadcasting channel lock system including a broadcasting device for transmitting a broadcasting signal via one or more of a plurality of channels, and a receiving device for receiving the broadcasting signal. The receiving device is provided with a locking device for limiting reception of video and/or audio via a specific one or more of the channels. A screen saver is incorporated as a part of the locking device for limiting the video reception so as to allow the user to partially view the video in the specific channel, thereby stimulating the interest of the user to the contents in the specific channel.