Title:
双方向通信装置
Document Type and Number:
Japanese Patent JP4377240
Kind Code:
B2
Abstract:
An apparatus includes a first signal receiving module, a second signal receiving module, and a signal transmitting module. The first signal receiving module is coupled between a first signal point and a third signal point for receiving a first RF signal from the first signal point. The first signal receiving module down-converts the first RF signal for providing a first down-converted signal at the third signal point. The second signal receiving module is coupled between a second signal point and the third signal point for receiving a second RF signal. The second signal receiving module down-converts said second RF signal for providing a second down-converted signal at the third signal point. The signal transmitting module is coupled between the first and second signal points and the third signal point for receiving a third RF signal from the third signal point. The signal transmitting module up-converts the third RF signal for selectively providing an up-converted signal at one of the first and second signal points in response to a selection signal.
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Inventors:
Ramas Whammy, Kumar
Hall, edward, allen
Hall, edward, allen
Application Number:
JP2003557214A
Publication Date:
December 02, 2009
Filing Date:
December 10, 2002
Export Citation:
Assignee:
Thomson Licensing
International Classes:
H04N7/20; H04B7/155; H04N7/173
Domestic Patent References:
JP2001102979A | ||||
JP10276124A | ||||
JP9252320A |
Foreign References:
US6272351 | ||||
US20020140617 |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito