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. 17, 2009
Filed:
Apr. 10, 2001
Ryuichiro Hisamatsu, Kanagawa, JP;
Takamichi Mitsuhashi, Tokyo, JP;
Tadashi Saito, Chiba, JP;
Katsutoshi Sakao, Kanagawa, JP;
Yasuhisa Nakajima, Kanagawa, JP;
Hiroshige Okamoto, Kanagawa, JP;
Ryuichiro Hisamatsu, Kanagawa, JP;
Takamichi Mitsuhashi, Tokyo, JP;
Tadashi Saito, Chiba, JP;
Katsutoshi Sakao, Kanagawa, JP;
Yasuhisa Nakajima, Kanagawa, JP;
Hiroshige Okamoto, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A data transmission device transmits a data broadcast using a narrow unused broadcasting band in a digital broadcast, and to record the data broadcast, which has been received, on a receiving side so that the receiving side can play back the data broadcast after a data stream is totally recorded. The transmission device generates a first data stream, which is recorded on a recording medium on a receiving side, and a second data stream including audio and video data, which is transmitted as a broadcasting program. The transmission device multiplexes the first and the second data streams and then transmits the multiplexed data stream. The transmission of the multiplexed data stream is controlled so that a transmission rate for the multiplexed data stream does not exceed the maximum transmission rate, and so that a transmission rate for the first data stream becomes lower than that for the second data stream. A receiving device records the first data stream on the recording medium, and permits the first data stream to be played back for use after the transmission completes.