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. 26, 2008
Filed:
Nov. 12, 2004
Atsushi Sumasu, Kanagawa, JP;
Shoji Miyamoto, Miyagi, JP;
Sadaki Futagi, Ishikawa, JP;
Keiji Takakusaki, Kanagawa, JP;
Takao Nihei, Kanagawa, JP;
Atsushi Sumasu, Kanagawa, JP;
Shoji Miyamoto, Miyagi, JP;
Sadaki Futagi, Ishikawa, JP;
Keiji Takakusaki, Kanagawa, JP;
Takao Nihei, Kanagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An apparatus that can lower the possibility of failing reception modulation in communication where data is transmitted with and without directivity and prevent deterioration of transmission efficiency caused by retransmission. With this apparatus, a gain control signal multiplex section () time division multiplexes a directional transmission signal and a gain control signal. A transmission level control section () controls the transmission power level of a gain control signal so that the transmission power level of the gain control signal is smaller than the transmission power level of a directional transmission signal and the received power level of the gain control signal is larger than a received power level of a nondirectional transmission signal at the receiving side, and controls the transmission power level of a directional transmission signal so that the received power level of the directional transmission signal is larger than the received power level of a nondirectional transmission signal and the received power level of a gain control signal at the receiving side.