Title: Transmission modulation apparatus, communication apparatus and mobile wireless apparatus
Application Number: 200680000144 Application Date: 2006.02.09
Publication Number: 1943120 Publication Date: 2007.04.04
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04B1/04;H03F3/24;H03C5/00
Applicant(s) Name: Matsushita Electric Ind Co., Ltd. Address:
Inventor(s) Name:
Attorney & Agent: huangxiao lin wangzhi sen
Abstract:
    A transmission modulation apparatus using a polar modulation of the two-point modulating scheme that can complete the timing adjustment of a BB phase modulation signal and a BB amplitude modulation signal in a short time. In a phase modulating part (10) using a PLL circuit to perform a two-point modulation, a switch (17) is provided to change the PLL circuit to an open loop, and when a first delay part (5) is used to correct the synchronization deviation of the BB phase modulation signal and the BB amplitude modulation signal, the switch (17) is turned off to change the PLL circuit to the open loop.
Time: 10
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