Facsimile apparatus capable of connecting to mobile communicator and public communication line
AssigneeCanon Kabushiki Kaisha
InventorsYosuke Ezumi, Takeshi Tsukamoto
Life of this patent
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Abstract
In portable facsimile apparatus capable of being connected to a telephone line or mobile communication unit, the setting in a modem may be changed in accordance with the connected line. More specifically, the setting in a modem 1-8 is changed, depending on whether the modem is connected to a telephone line 1-10 or a mobile communication unit 1-11. Also, a circuit for discriminating which line is connected to a NCU 1-9 is provided so that the modem 1-8 can change an output signal level in accordance with result of the discrimination.
Claims20
A facsimile apparatus capable of utilizing a plurality of types of communication lines by switching over an operation mode of regulation means for regulating a signal gain in a modem in accordance with a connected communication line comprising:
- discrimination means for discriminating the type of the connected communication line;
- control means for controlling said regulation means in accordance with the discrimination result by said discrimination means, wherein
- said regulation means includes an equalizer which has a first mode for automatically regulating a signal gain, and a second mode for holding the signal gain, and
- said control means includes select means for selecting the first mode or the second mode in accordance with the discrimination result.
A communication control method adopted to a facsimile apparatus capable of utilizing a plurality of types of communication lines by switching over an operation mode of a regulator for regulating a signal gain in a modem in accordance with a connected communication line comprising the steps of:
- discriminating the type of the connected communication line;
- and
- controlling the regulator in accordance with the discrimination result in said discriminating step,
- wherein the regulator includes an equalizer which has a first mode for automatically regulating a signal gain, and a second mode for holding the signal gain, and
- said controlling step includes selecting the first mode or the second mode in accordance with the discrimination result.
Dependencies are inferred from the claim text.