Original document(13 pages)  中文版
    A mobile telephone, as well as a radio transmission process, are particularly suitable for so-called dual use appliances. The mobile telephone has a first transmitter (3) for transmitting/receiving mobile radio signals in a time multiplex frame of a duration t1 with a number of time slots of a duration t2 in a first frequency range, and a second transmitter (4) for transmitting/receiving signals in a second frequency range. A converter (2) converts the signals received by the second H.F. unit (4) in reception time slots of a time multiplex frame into useful signals, and useful signals for transmission in transmission time slots of a time multiplex frame by means of the second transmitter/receiver (4). The duration of the transmission and reception time slots equals m x t2, m being an integer >/=1, and the duration of a time multiplex frame equals n x t1, n being an integer >/=1. The transmission and reception time slots are transmitted with the same H.F. carrier frequency. The mobile telephone and radio transmission process make it possible to use a mobile telephone in a dual mode as a mobile and as a cordless telephone, with as little as possible technical complexity and therefore low cost.
Application Number
98809562 Application Date
Title 名称 Dual mode mobile telephone
Publication Number
1275296 Publication Date
Approval Pub. Date Granted Pub. Date
International Classification 分类号 H04Q7/32
Applicant(s) Name
Siemens AG
Address 地址
Inventor(s) Name 发明人 K.-D. Pillekamp;U. Sydon
Attorney & Agent 代理人 zheng lizhu

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