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:
Nov. 27, 2012
Filed:
Dec. 18, 2009
Masanori Kurita, Hirakata, JP;
Haruhiro Kuboyama, Toyonaka, JP;
Keitaro Hoshiba, Minoh, JP;
Panasonic Corporation, Kadoma-shi, JP;
Abstract
The wireless communication system includes a first wireless terminal (A) and a plurality of second wireless terminals (B). The first wireless terminal (A) transmits a synchronization signal. The synchronization signal comprises a plurality of reference signals each including a reference data indicative of a relation between the corresponding reference signal and a reference time. The second wireless terminal (B) includes a timer () configured to output an activation signal at a regular interval, a control unit (), and a synchronization unit (). The control unit () activates a wireless receiver () each time it receives the activation signal from the timer (). When the wireless receiver () receives the synchronization signal, the synchronization unit () refers to the reference data obtained from the earliest reference signal and a reception time of the earliest reference signal, and determines the reference time. The synchronization unit () controls the timer () to output the activation signal after a lapse of a predetermined time from the reference time. The control unit () controls a wireless transmitter () to transmit a wireless signal during a period including a time period of receiving the activation signal from the timer ().