Canon Kabushiki Kaisha

Akihiro Uchimi

Michihiro Izumi

Naoto Kagaya

Shunji Arai

Hideya Tabeta

Data communicated on one wireless channel is converted and communicated via a wired line. Alternatively, data communicated on a plurality of wireless channels is bundled and communicated via a wired line using a number of channels smaller than that of the wireless channels. In a case where another wireless communication apparatus wishes to use a wireless communication channel when a plurality of wireless channels are being used for communication, some of the plurality of wireless channels are released, thereby making it possible for the other communication apparatus to perform communication even when communication is being carried out using the plurality of wireless channels. When communication by the other wireless communication apparatus subsequently ends, communication on the original number of wireless channels is resumed.

Wireless communication system having network controller and wireless communication device connected to digital communication line, and method of controlling said system

A radio communication apparatus capable of executing communication and processing of audio data and image data by simplifying the system structure where various apparatuses are connected via a terminal adapter (TA), which conventionally used a large area and whose connection was complicated. More specifically, the system structure comprises: an interface unit (RS232C controller , driver , PIAFS controller , I.460 processor ) connected with a data terminal (PC) by radio or by cable; radio communication unit (PHS engine unit ) for realizing radio communication with a wireless telephone unit; and transmission arrangement (first port switch , second port switch , ISDN interface unit and the like) for transmitting at least one of the data transmitted by the data terminal (PC) or the audio data transmitted by the wireless telephone unit, to the digital public communication line (ISDN).

RADIO COMMUNICATION APPARATUS, HAVING COMBINED FUNCTIONS SUCH AS TERMINAL ADAPTER, DIGITAL RADIO COMMUNICATION APPARATUS, FACSIMILE COMMUNICATION APPARATUS AND SO ON, FOR BEING CONNECTED TO A DIGITAL PUBLIC COMMUNICATION LINE

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Tokyo, Japan

Akihiro Uchimi