JPH04217192A - Video telephone set - Google Patents

Abstract

PURPOSE:To reproduce the contents of communication at the end of the communication and to output to a video tape recorder, a video printer, etc., by providing a means storing exchanged information. CONSTITUTION:A system controller 11 stores a signal to be exchanged through a network interface 10 while driving a recording controller 15 in a storage means 16 by operating an operation key for recording. Then, the system controller 11 operates a video input/output device 3, an audio input/output device 5, etc., through the network interface 10 while driving a recording controller 15 by operating an operation key for reproduction.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television telephone.

0002

2. Description of the Related Art Conventional television telephones have not been equipped with storage means for storing transmitted and received information.

0003

[Problems to be Solved by the Invention] With conventional television telephones, it was not possible to view the receiving screen again after the end of the communication. Furthermore, television telephones that communicate using digital lines communicate control information such as protocols, but since the communicated control information cannot be recorded, it has been difficult to investigate the cause of communication errors. For example, according to standards related to television telephones recommended by the International Telegraph and Telephone Consultative Committee (CCITT), the functions of communicating television telephones are assembled into a data structure called a frame, transmitted and received, and common functions are shared. If such control information can be recorded, it will be easier to investigate the cause of a communication error.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a television telephone that can record transmitted and received information.

[0005]

[Means for Solving the Problems] The present invention is characterized by providing a storage means for storing transmitted and received information.

[0006]

[Operation] Part or all of the transmitted and received information is stored in the storage means.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be explained in detail with reference to the drawings. FIG. 1 is a circuit block diagram of a television telephone according to an embodiment of the present invention, and this television telephone is constituted by a main device section 1 and a storage section 2. The main device section 1 includes a video input/output device 3 connected to a display device and an imaging camera (not shown), a video codec 4 connected to the video input/output device 3, and a speaker and microphone (not shown). An audio input/output device 5, an audio codec 6 connected to the audio input/output device 5, a delay circuit 7 connected to the audio codec 6, a telematic device 8, a video codec 4, a delay circuit 7, and a telematic device 8. a network interface 10 interposed between the multi-demultiplexer 9 and a communication line (not shown); and a system control device 1.
1, an inter-terminal control signal processing device 12 interposed between the system control device 11 and the multi-demultiplexer 9, and a network control signal processing device interposed between the system control device 11 and the network interface 10. A device 13 is installed. The storage unit 2 includes a system control device 11
A recording control device 15 connected to the network interface 10 and a storage means 16 connected to the recording control device 15 are installed. The storage means 16 is constituted by, for example, a hard disk device or a flexible disk device.

Next, the operation will be explained. When a recording operation key (not shown) is operated, the recording control device 15 is driven by the system control device 11, and signals transmitted and received by the recording control device 15 via the network interface 10 are stored in the storage means 16. When a playback operation key (not shown) is operated, the system control device 11 drives the recording control device 15, and the recording control device 15 supplies the signal stored in the storage means 16 to the network interface 10, and the video input/output device 3, audio input/output device 5, etc.

[0009] In this way, since the signals transmitted and received via the network interface 10 can be stored in the storage means 16, the content of the communication can be reproduced after the communication is completed, and the reproduction information can be transferred to a video tape recorder or the like as needed. It can be output to a video printer, etc. Further, by reproducing the control information input and output by the terminal-to-terminal control signal processing device 12, the network control signal processing device 13, etc. as characters on a display device, it becomes easier to investigate the cause of a communication error.

[0010] In the above embodiment, all the transmitted and received signals are stored in the storage means 16, but it is not necessary to do so; for example, only control information may be stored in the storage means 16. Furthermore, an IC memory or the like may be used as the storage means 16.

[0011]

As explained above, according to the present invention, since a storage means for storing transmitted and received information is provided, it is possible to reproduce the contents of the communication after the communication is completed, and the reproduced information can be transferred to the video if necessary. It can be output to a tape recorder, video printer, etc. Further, by reproducing the control information on a display device or the like, excellent effects such as facilitating investigation of the cause of a communication error can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a circuit block diagram of a television telephone according to an embodiment of the present invention.

[Explanation of symbols]

16 Memory means

Claims (1)

[Claims] 1. A television telephone set comprising a storage means for storing transmitted and received information.