Radio communication apparatus for ISDN
AssigneeSony Corporation
InventorMunehiro Yoshikawa
Life of this patent
Estimating the term…
Abstract
A radio communication apparatus includes a main telephone connected to a digital line network and a plurality of sub telephones each being capable of performing a radio communication to the main telephone. The main telephone includes a memory for storing a subaddress and a direct dial-in number of each of the plurality of sub telephones, and an unit for, upon receiving an incoming signal transmitted from the digital line network, detecting a subaddress or a direct dial-in number included in the incoming signal, discriminating a sub telephone associated with the detected subaddress or direct dial-in number in accordance with the data stored in the memory, and transmitting the incoming signal to the discriminated sub telephone.
Claims4
A radio communication apparatus for providing radio communication between a digital line network and a plurality of sub telephones, the apparatus comprising:
- memory means for storing a subaddress and a direct dial-in number for each of the plurality of sub telephones;
- receiving means for receiving an incoming signal transmitted from the digital line network;
- first discriminating means for determining when the incoming signal has a direct dial-in number included in the incoming signal and for comparing the direct dial-in number of the incoming signal to the direct dial-in numbers stored in the memory means when the incoming signal has a direct dial-in number;
- second discriminating means for determining when the incoming signal has a subaddress included in the incoming signal and for comparing the subaddress of the incoming signal to the subaddresses stored in the memory means when the incoming signal has a subaddress;
- and
- transmitting means for transmitting the incoming signal to a discriminated sub telephone having at least one of a direct dial-in number and a subaddress that matches a respective one of a direct dial-in numbers and a subaddresses in the incoming signal.
Dependencies are inferred from the claim text.