JPH0314884U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a diagram showing the main circuit configuration of a still picture video telephone according to an embodiment of the invention, and FIGS. 2 and 3 are external views and main circuit diagrams of a conventional still picture video telephone. In the figure, 1...Still image video phone main body,
7... Standard telephone, 10... Cable A, 20...
. . . branch circuit, 21 . . . power supply control circuit.
Note that the same reference numerals in each figure indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A voice communication circuit that communicates with the other party through a telecommunications line, a detection circuit that detects voltage changes in the telecommunications line due to connection and disconnection operations between the voice communication circuit and the telecommunications line, and a detection circuit that photographs a subject. an image processing circuit that electrically processes images taken by a camera to generate an image signal for forming a still image or a moving image; an image communication circuit that transmits the image signal to the other party via the telecommunication line; 1. A video telephone set comprising: a power supply circuit that supplies power to a circuit; and a power supply control circuit that opens and closes the power supply circuit in response to a voltage change detected by the detection circuit.