Switch device and portable communication terminal

Details Switch device and portable communication terminal Switch device and portable communication terminal

2006-02-14

2006-02-14

Nguyen, Simon (Department: 2685)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S078000, C455S552100

Reexamination Certificate

active

06999786

ABSTRACT:
A small-sized switch apparatus for switching between signal paths of at least first, second and third frequency bands is capable of handling high-powered high-frequency signals with a relatively low control voltage and is useful in a mobile terminal apparatus. A first signal terminal of a diplexer is connected to an antenna terminal, and a second signal terminal is connected to a high-frequency switch via a filter. A third signal terminal of the diplexer is connected to a high-frequency switch via a second filter. The high-frequency switch has PIN diodes as switching devices, and performs switching between a global system for mobile communications transmission signal and a global system for mobile communications reception signal. The high-frequency switch has three sets of serially connected multi-staged FETs as switching devices, and performs switching between wide-band code division multiple access transmission/reception signals, a digital cellular system transmission signal and a digital cellular system reception signal.

REFERENCES:
patent: 6788958 (2004-09-01), Furutani et al.
patent: 2002/0137471 (2002-09-01), Satoh et al.
patent: 2002/0183016 (2002-12-01), Kemmochi et al.
patent: 2003/0189910 (2003-10-01), Yamada et al.
patent: 0911985 (1999-04-01), None
patent: 0932216 (1999-07-01), None
patent: 1003291 (2000-05-01), None
patent: 1303055 (2003-04-01), None
patent: 09-055682 (1997-02-01), None
patent: 200183780 (2000-06-01), None
patent: 2000-156651 (2000-06-01), None

Affiliated with

Also associated with

Rating

Switch device and portable communication terminal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switch device and portable communication terminal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switch device and portable communication terminal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3665619