Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Nakanishi; Eiichi
Address:
Tokyo, JP
No. of patents:
9
Patents:












Patent Number Title Of Patent Date Issued
5832373 Output power control device November 3, 1998
An output power control device is provided with an isolator, to which a transmission signal, that has been power amplified by a power amplifier, is input. The transmission signal is input via a transmission line connected to an output side of the power amplifier. The isolator only pa
5818392 Antenna with fixed and movable elements October 6, 1998
In a mobile radio transceiver, an antenna has a fixed element and a movable element. When the movable element is in an extended state, the movable element functions. On the other hand, when the movable element is in a retracted state, the fixed element functions. An impedance matching
5722062 Linear receiver having dual automatic gain control loops February 24, 1998
A linear receiver is disclosed which includes a linear receiver having: a preamplifier for amplifying linearly a modulated carrier signal (RF signal) having a first frequency trapped by an antenna; a mixer for converting the RF signal into an intermediate frequency signal having a se
5701597 Portable electronic device and method for supplying current to different loads December 23, 1997
According to a first aspect, a portable electronic device has at least two load circuits which are independently powered by different batteries. According to a second aspect, the load circuits are powered by the same battery, but their power lines are branched from a node located close t
5247542 QPSK power amplifier distortion correction system September 21, 1993
A quadrature phase-shift keying modulator produces a QPSK signal which is amplified by a power amplifier. The amplitude gain of the power amplifier is controlled in response to an amplitude difference between the QPSK signal output by the modulator and the amplified QPSK signal output by
5182527 Power amplifying apparatus for wireless transmitter January 26, 1993
A power amplifying apparatus according to the present invention can provide a stable electric power output with wide range by controlling both of the output amplifier for amplifying the electric power and the pre-amplifier disposed at the front of the output amplifier. Furthermore, in or
5144258 Power amplifier system for radio transmitter and method for using the same September 1, 1992
A power amplifier system suitable for a mobile radio receiver/transmitter is described. A wave form signal to be transmitted is made smooth during its rise and fall times, thereby making it possible to prevent a transmission spectrum from expanding and interfering with the adjacent c
5138274 Linear amplifier circuit August 11, 1992
In a linear amplifier circuit, an amplifier amplifies an input signal to produce an output signal, an input signal envelope detector detects the envelope of the input signal, and an output signal envelope detector detects the envelope of the output signal. The difference between the
5126688 Power amplifying apparatus for wireless transmitter June 30, 1992
A power amplifying apparatus according to the present invention can provide a stable electric power output with wide range by controlling both of the output amplifier for amplifying the electric power and the pre-amplifier disposed at the front of the output amplifier. Furthermore, in or










 
 
  Recently Added Patents
Synthetic bone grafts
Multi-touch recognition resistive touch screen for recognizing multi-touch coordinates through capacitor charging time
Active tags
Composition comprising a mixture of dextro- and levo-amphetamines complexed with ion-exchange resin particles to form drug resin particles
Sign language keyboard and sign language searching apparatus using the same
Nanoparticles in a flash memory using chaperonin proteins
Lighting elements
  Randomly Featured Patents
Gamut description and visualization
Ultrasonic flow velocity meter and ultrasonic transducer thereof
Breast, gastric and prostate cancer associated antigens and uses therefor
Driver circuit having low voltage detection and high current detection
Method of validating and/or calibrating devices used for carrying out photometry of living tissues and a device for implementing said method
Method for selectively routing enhanced calls
Film sheet for use in antiballistic articles
Dog behavior monitoring and training apparatus
Composite closure cap
Process for resolution of tamsulosin and compounds, compositions, and processes associated therewith