Electronic apparatus having radio transmitter

Details Electronic apparatus having radio transmitter Electronic apparatus having radio transmitter

2006-02-21

2006-02-21

Trinh, Sonny (Department: 2687)

Telecommunications

Transmitter

Angle modulation

C455S260000, C455S299000, C375S327000

Reexamination Certificate

active

07003270

ABSTRACT:
An electronic apparatus comprising a radio transmitter is disclosed. In a computer system (1) having a radio transmission circuit (3) of a phase modulation type supplied with power from a power supply (4) of a switching type, the switching frequency of the power supply (4) is determined based on the comparison frequency for the sampling operation of a PLL circuit (10) of the radio transmitter, thereby removing the power noises generated from the switching regulator of the radio transmitter of a phase modulation type.

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