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:
Feb. 03, 2004
Filed:
May. 07, 1999
Daniele Santilli, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
An interactive television system for selectively retrieving video images or teletext pages from a remote transmitter ( ). User requests are communicated to the transmitter through the telephone network ( ). The selected images (e.g. teletext pages) are provided with an image address (a personal teletext page number) and transmitted through a broadcast medium ( ). A broadcast receiver ( ) captures, stores and displays images having a particular address in a further autonomous manner. In order to prevent co-viewers from tracing the image address and thus watching personal information intended for an individual user on their broadcast receivers ( ), the service provider sends a control command (the teletext “stop” command) to the receiver through the network whenever a new image has been transmitted. Then, the provider broadcasts a different image having the same image address. In view of the stop command, the individual receiver will ignore this “pseudo-image” while this image will.