Radio communication apparatus with programmable signal modulation

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5175875
SERIAL NO

07502680

1 Status Updates

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A radio communication apparatus comprising a modulating portion for modulating a carrier with a signal to transmit so as to produce a transmissible signal; a signal transmitting portion for transmitting the transmissible signal; a level adjusting portion for adjusting a level of the signal to transmit or a level of a control signal used for controlling the transmissible signal in accordance with digital control data supplied to the level adjusting portions; a memory for storing digital adjusting data; and a control unit for reading the digital adjusting data from the memory and supplying the level adjusting portion with the digital adjusting data read from the memory or modified digital adjusting data obtained based on the digital adjusting data read from the memory as the digital control data.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SONY CORPORATIONTOKYO, JP28148

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inoue, Takayuki Tokyo, JP 136 946
Someno, Noboru Saitama, JP 6 140
Takao, Nobutaka Kanagawa, JP 6 110
Yokoya, Satoshi Kanagawa, JP 23 307

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (1)
* 4521912 Low power indicating circuit for a radio transmitter 21 1983
 
NEC CORPORATION (1)
* 4709404 Battery-powered radio communication apparatus capable of prolonging the communicable state thereof 22 1985
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
* 5033109 Pocket transceiver 73 1989
 
KABUSHIKI KAISHA TOSHIBA (1)
* 5033111 Radio telecommunication apparatus 14 1989
 
RICOH COMPANY, LTD. (1)
* 4956876 DC decoupled radio communication system 14 1988
 
MOTOROLA, INC. (1)
* 4992753 Power amplifier for a radio frequency signal 39 1989
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
AT&T WIRELESS SERVICES, INC. (6)
* 5675590 Cyclic trellis coded modulation 34 1994
* 5659578 High rate Reed-Solomon concatenated trellis coded 16 star QAM system for transmission of data over cellular mobile radio 47 1994
* 5784417 Cyclic trelles coded modulation 10 1995
* 5838728 High rate reed-solomon concatenated trellis coded 16 star QAM system for transmission of data over cellular mobile radio 66 1997
* 5931965 Cyclic trellis coded modulation 17 1997
6578173 Cyclic trellis-coded modulation 7 2002
 
AT&T MOBILITY II LLC (3)
6889356 Cyclic trellis coded modulation 7 2003
8037396 Cyclic trellis coded modulation 3 2005
* 2005/0254,606 Cyclic trellis coded modulation 2 2005
 
NEC CORPORATION (2)
* 6178309 Electronic device having an AGC loop 1 1997
* 6327483 Mobile radio communication equipment 3 1999
 
NXP B.V. (1)
* 6073009 Radio signal controller radio communication device, radio communication system and methods of controlling a radio 4 1997
 
INTELLECT WIRELESS INC. (12)
6278862 Method and apparatus for enhancing the efficient communication of information in an alphanumeric paging network 113 1994
7426264 Method and apparatus for improved personal communication devices and systems 86 1996
7251318 Method and apparatus for improved personal communication devices and systems 32 2001
7266186 Method and apparatus for improved paging receiver and system 147 2001
7349532 Picture and video message center system 23 2003
7305076 Method and apparatus for improved paging receiver and system 8 2003
7310416 Method and apparatus for improved personal communication devices and systems 14 2005
7286658 Method and apparatus for improved personal communication devices and systems 19 2005
7257210 Picture phone with caller id 31 2005
7454000 Method and apparatus for improved personal communication devices and systems 20 2005
7308088 Method and apparatus for improved personal communication devices and systems 7 2005
7254223 Method and apparatus for improved personal communication devices and systems 12 2005
 
SONY CORPORATION (2)
* 5414751 Portable telephone apparatus responsive to control signals obtained through a connector and through a wired telephone line for a mending the operational program 53 1992
* 5826177 Radio transmitter 15 1996
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
* 5495518 Car telephone apparatus having operational control program replacing function 11 1994
 
NOKIA MOBILE PHONES LTD. (1)
D412168 Handset 39 1997
 
ITT MANUFACTURING ENTERPRISES, INC. (1)
* 5930688 Method and apparatus for intermodulation noise suppression in RF power amplifiers 8 1992
 
DDBH INVESTMENTS, LP (1)
6427064 Method and apparatus for maintaining a database in a portable communication device 71 1994
 
KYOCERA CORPORATION (1)
* 6522892 Method of controlling transmission output of radio via closed loop and open loop operation 3 1998
 
RAKUTEN, INC. (1)
* 9564147 Audio communication system, audio communication method, audio communication purpose program, audio transmission terminal, and audio transmission terminal purpose program 0 2013
* Cited By Examiner