| 摘要 |
PURPOSE: A PCS(Personal Communication Services) and cellular combinable terminal is provided to combine a PCS function with a cellular function in one terminal, thereby obtaining a sufficient call coverage and implementing high-quality calls. CONSTITUTION: A main circuit(1) comprises as follows. An input/output processor(11) is electrically connected with a keypad(3), a microphone(4), a speaker(5), and a display(6), and controls inputting/outputting of voice and data signals. A switching unit(12) selects a communication method. A PCS communication unit(13) performs PCS communication. A cellular communication unit(14) performs cellular communication. The PCS communication unit(13) comprises as follows. A PCS processor(131) modulates/demodulates the voice signal, and controls the signal. A sensor(132) confirms communication sensitivity. A filter(133) filters a communication band.
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