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Charles MatsumotoPeoria, AZ

Charles Matsumoto Phones & Addresses

Peoria, AZ   

Phoenix, AZ   

Maricopa, AZ   

4101 W Montebello Ave, Phoenix, AZ 85019    602-7380406   

Work

Position: Installation, Maintenance, and Repair Occupations

Education

Degree: High school graduate or higher
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Charles Matsumoto resumes & CV records

Resumes

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Sales Executive

Industry:
Automotive
Work:
Tca Auto
Sales Executive
Charles Matsumoto Photo 11

Charles Matsumoto

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Charles Matsumoto

Charles Matsumoto Photo 13

Charles Matsumoto

Charles Matsumoto Photo 14

Principal Staff Rfic Engineer At Motorola

Location:
Phoenix, Arizona Area
Industry:
Semiconductors
Charles Matsumoto Photo 15

Charles Matsumoto

Publications & IP owners

Us Patents

Transmit Modulation Circuit And Method Of Operating A Transmitter

US Patent:
6747987, Jun 8, 2004
Filed:
Feb 29, 2000
Appl. No.:
09/514804
Inventors:
Richard B. Meador - Gilbert AZ
Joshua E. Dorevitch - Chicago IL
Quang C. Le - Gilbert AZ
Charles H. Matsumoto - Phoenix AZ
David H. Minasi - Fort Lauderdale FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H04J 316
US Classification:
370465, 455 76, 375216
Abstract:
A transmitter ( ) includes a fractional N synthesizer, a baseband digital modulation stage coupled to the fractional N synthesizer in a first modulation mode, and a baseband I/Q modulation stage also coupled to the fractional N synthesizer and reusing the fractional N synthesizer in a second modulation mode. A method ( ) of operating a transmitter includes transmitting a first signal from a transmitter using the fractional N synthesizer and the baseband digital modulation stage to modulate the first signal according to a first wireless protocol. The method ( ) also includes transmitting a second signal from the transmitter using the baseband I/Q modulation stage and the fractional N synthesizer to modulate the second signal according to a second wireless protocol.

Level Shifter

US Patent:
6271707, Aug 7, 2001
Filed:
Feb 29, 2000
Appl. No.:
9/515005
Inventors:
Quang C. Le - Gilbert AZ
Charles H. Matsumoto - Phoenix AZ
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H03L 500
US Classification:
327333
Abstract:
A level shifter for use in an integrated circuit that translates a binary input signal having a low voltage level to a binary output signal having a different voltage level. The level shifter (10) includes an input stage (20) that receives the input signal and provides control signals to a low state voltage translation circuit (30) and a high state voltage translation circuit (40). The low state voltage translation circuit (30) controls the level shifter (10) when the input signal is low and provides a bias signal to a bipolar device (Q2) adapted to pull the external output signal low. The high state voltage translation circuit (40) controls the level shifter (10) when the input signal is high and includes a voltage reducing circuit (44) operating as a current mirror with a pull-up PMOS transistor (P13) to couple an internal high voltage power supply to the output node (Vout).

Possible Relatives

Cynthia J Matsumoto  David K Matsumoto  Dee M Matsumoto  Dewey A Matsumoto  Diane R Matsumoto  Eric Matsumoto  Frances K Matsumoto  Charles W Johnson  Charles L Stamps  Charles J Stancil 

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