Low dissipation radio transceiver analog front-end assembly for endoscope capsule system |
Title： |
| Low dissipation radio transceiver analog front-end assembly for endoscope capsule system |
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Application Number： |
200610112599 |
Application Date： |
2006/08/25 |
Announcement Date： |
2007/02/14 |
Pub. Date： |
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Publication Number： |
1913378 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H04B 1/38, A61B 1/06, A61B 1/04, A61B 1/05, A61B 5/00 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Chi Baoyong, Yao Jinke, Han Shuguang, Li Guolin, Wang Zhihua |
Key Words： |
transceiver, analog front-end, endoscope capsule system |
Abstract： |
This invention relates to a method for manufacturing endoscope capsules characterizing that a TR device simulates front IC, the antenna shared by the TR and TR switch, in which, said circuit includes: a receiver composed of an orderly serial low noise amplifier, a down frequency converter, a coupling capacitor, an automatic gain control loop and ASK demodulator, the input of the low noise amplifier is connected with the output of the TR switch, ASK decoder outputs digital information, the emitter includes: a crystal oscillator, a low frequency phase locking ring, an ASK modulator receiving digital information, a coupling capacitor, an upper frequency converter and a power amplifier connected in series orderly, the local signals of the upper and the lower converters are provided by the oscillator, the output of the power amplifier is connected with the related input of the TR switch and the antenna is connected with the related signal end of the switch. |
Claim： |
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Priority： |
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PCT： |
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