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Communication apparatus and communication method

A technology of a communication device and a communication method, which is applied in the directions of telephone communication, electrical components, etc., can solve problems such as inability to transmit

Inactive Publication Date: 2009-05-27
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, when the transmitting and receiving device originally connected to the telephone line is disconnected from the telephone line or when the telephone line fails, because it is intended to use the same transmitting and receiving device for transmission processing, it cannot be transmitted.

Method used

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  • Communication apparatus and communication method
  • Communication apparatus and communication method
  • Communication apparatus and communication method

Examples

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Embodiment Construction

[0035] Hereinafter, a case where the present invention is applied to a facsimile machine as an exemplary embodiment of the present invention will be explained in detail with reference to the drawings.

[0036] FIG. 1 is a functional block diagram showing the configuration of an image forming apparatus 10 to which an exemplary embodiment is applied. The image forming apparatus 10 has a scanning function, a printing function, a facsimile function, etc. in addition to a so-called copy function.

[0037] The image forming apparatus 10 is provided with a controller 11, an image reading unit 12, a print processing unit 13, a user interface unit 14, and a FAX (fax) communication unit 15. These units are connected to each other by a bus 16. Here, the FAX communication unit 15 is provided with a first communication part 15a, a second communication part 15b, and a third communication part 15c. These three communication parts are individually connected to the bus 16. The telephone network 10...

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PUM

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Abstract

The invention provides a communication apparatus and a communication device. The communication apparatus is provided with: plural transmission units that respectively transmit communication signals through a telephone line; a detection unit that detects a value of a line voltage supplied from the telephone line to each of the plural transmission units; and a controller that controls transmission from each of the plural transmission units, according to a relation between a predetermined reference voltage value and the value of the line voltage of each of the plural transmission units detected by the detection unit.

Description

Technical field [0001] The invention relates to a communication device and a communication method. Background technique [0002] In general communication devices such as facsimile machines and telephones, a single transmitting and receiving device is connected to a single telephone line for transmitting and receiving data such as image information and sound information. Meanwhile, in recent years, a communication device equipped with a plurality of transmission and reception devices respectively connected to different telephone lines is used, and data such as image information and sound information is transmitted and received in the plurality of transmission and reception devices. [0003] In addition, general communication devices such as facsimile machines and telephones are provided with line interface circuits, whereby data such as image information and sound information are transmitted and received through the telephone line. Recently, as a type of line interface circuit, a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M11/06
CPCH04M11/066
Inventor 深见健太郎须藤直树石津秀雄
Owner FUJIFILM BUSINESS INNOVATION CORP