DIGITAL CORDLESS TELEPHONE SYSTEM

• Main Author: HACHIGA HITOSHI
• Format: Patent
• Language: English
• Published: 27.09.1996
• Edition: 6
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TELEPHONIC COMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

PURPOSE: To store and reproduce the communication contents of a slave unit at a low cost and to miniaturize a system by using A/D and D/A conversion circuits for communication in common to the storage and reproduction of the communication contents. CONSTITUTION: By the ON of a communication button 113, a control circuit 103 radio-connects a TDMA control circuit 106 and a radio circuit 102. Then, a communication state is attained by a dial button 104 and the voice of an opposite party is passed through the circuits 102, 106, a CODEC circuit 110, the D/A conversion circuit 109, converted into analog voice signals, outputted to a speaker 111 and recorded in a RAM 107. Further, the circuit 110 judges the presence/absence of the communication contents and a silence interval and the circuit 103 performs recording to the RAM 107 at the time of sound and the ON of a storage button 114 and performs the control of recording stoppage at the time of silence. Thus, the RAM 107 is effectively utilized. In such a manner, since the audible signals of the circuit 106 are recorded and the circuit 103 controls the recording and the reproduction, the circuits 108 and 109 are used in common to the recording and the reproduction.