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Hama; Teruyasu
Suwa, JP
No. of patents:

Patent Number Title Of Patent Date Issued
7106976 Optical transmitter September 12, 2006
This invention provides an optical transmitter in which reduced power consumption is achieved by, when a signal generator needs data transmission, driving a laser emitting device to perform emission. An optical transmitter includes a receiver, a laser driving circuit, a light emittin
6563458 GPS reception system May 13, 2003
A GPS reception system is provided in which, when sufficient reception level for positioning cannot be obtained only by a built-in antenna, a reception antenna is switched from the built-in antenna to an external antenna.

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