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Power amplifier device having a plurality of power amplifier units connected in parallel
It is a general object of the present invention to provide an improved power amplifier device in which the above-mentioned disadvantages are eliminated. A more specific ...
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Frequency self-compensated operational amplifier
OF THE PREFERRED EMBODIMENTS The numerous innovative teachings of the present application will be described with particular reference to the presently preferred ...
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Antenna coupling device for coupling an antenna of a hand-portable telephone to a remotely located antenna
The object of the invention is to achieve an antenna coupling device that overcomes as far as possible the above mentioned drawbacks and that fulfills the demands of a ...
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Transmission line filter having a varactor for tuning a transmission zero
Briefly, according to the invention, a tunable transmission line filter is provided which includes a first resonator having open ends. The first resonator includes a ...
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Oscillator circuit for receiving a wide frequency band signal
The present invention was made in consideration of these circumstances and has as its object to provide an oscillator which reduces noise, operates stably without the ...
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Semiconductor device
The present invention is devised to solve the abovedescribed problems. Accordingly, it is an object of the present invention to provide a more highly-integrated BiCMOS ...
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Automatic volume adjustment in a wireless handset
FIG. 1 illustrates a wireless telecommunication switching system having a plurality of wireless cells (also referred to as cell sites) which are cells 101-109. These ...
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Signal transmission reception switching apparatus
Accordingly, it is an object of the present invention to provide an improved signal transmission reception switching apparatus in which the aforenoted shortcomings and ...
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Phase shifter
An object of the present invention is to provide a phase shifter that produces a plurality of phase shift quantities. Other objects and advantages of the invention will ...
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Low power wireless communication system employing magnetic control zones
The present invention provides a short range wireless communication system which consumes very little power and which employs relatively simple and inexpensive circuitry ...
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MEMS 
