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:
Sep. 28, 2004
Filed:
May. 19, 2000
Takehiko Nakano, Kanagawa, JP;
Mariko Kitajima, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A plurality of copies of an information signal are prevented from being formed. For example, a transmitter such as IRD, STB, or the like transmits an information signal supplied from the outside via a radio wave or the like to each apparatus in a system. Together with a monitor, a speaker, and the like, for example, two recorders such as VTRs or the like are provided in the system. It is assumed that the recorder is executing the recording operation. The transmitter recognizes that the recorder is under the recording operation. Even if the other recorder issues a request indicating that it wants to perform the recording operation in this situation, the operation responsive to the request is not permitted. By such a management, a plurality of recorders in the network are prevented from recording the same information signal. A plurality of copies are prevented from being formed with respect to the same information signal.