JPH04248751A - Television telephone system - Google Patents

Abstract

PURPOSE:To facilitate redialing of a telephone number dialed in the past by displaying storage dial information onto a monitor television receiver. CONSTITUTION:The telephones system is provided with a means (13) to detect a state of a hook switch, a memory (10) storing dial information and a means (12) converting the dial information into a display signal in addition to a camera (1) to read a picture, a memory (3) to store the picture data, a monitor television receiver (7) to display the picture and a MODEM (5) to send/receive the data. Then the dial information in the memory (10) is displayed on the monitor television receiver (7) and redialing is implemented by designating the display content.

Description

[Detailed description of the invention]

0010

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

[0020]

2. Description of the Related Art Generally, a videophone device consists of a camera section for capturing images, an image memory section for storing image data, a monitor television section for displaying images, and a monitor section for transmitting and receiving image data. It consists of a modem section. In addition, such videophone devices are not only used as telephone devices that can simply send images, but also incorporate ingenuity to increase added value by utilizing the inherent television monitor section and peripheral circuits for memory operation. being done. For example, a videophone device has been proposed that effectively utilizes a television monitor by providing a memory for storing telephone directory data and displaying the contents of the telephone directory on the television monitor.

[0030]

[Problems to be Solved by the Invention] By the way, although the conventional videophone device described above has a telephone directory function that can display multiple sets of telephone numbers, it does not have a redial function.
It was only possible to respond to the last dialed call, and even though it was equipped with a display device called a monitor television, it was difficult to say that the display device was being used effectively.

The present invention has been made in view of the above points, and an object of the present invention is to provide a video telephone device with an expanded redial function.

[0050]

[Means for Solving the Problems] In order to achieve the above-mentioned objects, the present invention provides a camera section for capturing images, an image memory section for storing image data, a monitor television section for displaying images, Furthermore, in the video telephone device equipped with a modem section for transmitting and receiving image data, means (13) for detecting the state of the hook switch (14);
a memory (10) for storing dial information; a means (12) for converting this dial information into a signal for display;
Input means (RD) for reading dial information from the memory (10) and instructing display on the monitor television (7) is provided.

[0060]

[Operation] When a dial is made while the hook switch is off, the dial data is stored in the dial recording buffer memory. When the redial key is pressed, data is read from the buffer memory in which dials are recorded and supplied to the font data conversion means. The data converted into display font data by the font data conversion means is stored in an image memory, subjected to D/A conversion, and displayed on a monitor television. When you specify a phone number from the displayed dial records, the specified dial data is output to the dialer.

[0070]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the main parts of a videophone device, in which a camera (1) for taking images is provided,
Image information captured by the camera (1) is converted into a digital signal by an A/D conversion circuit (2) and stored in an image memory (3), similar to a normal videophone device. The image signal stored in the image memory (3) is converted into an analog image signal by the D/A converter (6), and then sent to the monitor television (7).
will be displayed. The image data stored in the image memory (3) is modulated by the modem (5), output to the telephone line, and transmitted to the other party as a transmission signal along with the voice. On the other hand, image data sent via the telephone line is demodulated by the modem (5) and stored in the image memory (3). Image memory (3) consisting of video RAM, etc.
) is controlled by the image memory control circuit (4).

Next, the configuration of this embodiment will be explained along with an example of the operation when a dial key is pressed, with reference to the flowchart of FIG. 2. The buffer memory for storing dial records is 1.
It is assumed that the capacity is designed to store 0 dial data. When off-hook, the off-state of the hook switch (14) is detected by the hook-switch state detector (13), and this off-state detection signal is sent to the CPU (8).
can be conveyed to. The CPU (8) issues a dial input standby command to the keyboard (9), a dial memory control circuit (11) described later, and the like. In this state, the keyboard (9)
When dialing is performed by the operation, the CPU (8) instructs the input dial data to be stored in the dial storage buffer memory (10) controlled by the dial memory control circuit (11). If the buffer memory (10) is already full of data, the earliest dialed data is deleted and newly inputted dial data is stored. When the call ends and the user goes on-hook, the CPU (8) detects that the hook switch (14) has been turned on by the hook switch status detector (13).
). Upon detecting this, the CPU (8) finishes storing the dial data.

Next, an example of redial operation will be explained. In addition to the dial key, the keyboard (9) includes a redial key (16) for instructing redial, an up key (17) and a down key (18) for moving the cursor up and down, and from the displayed multiple sets. A determination key (19) is provided for specifying a desired telephone number. When the redial key (16) is pressed while off-hook,
A redial key input signal is input to the CPU (8),
A redial command is issued from the PU (8) to the dial memory control circuit (11) instead of writing dial information. In response to the redial command, the dial memory control circuit (11) sequentially reads dial record data already stored in the buffer memory (10) and supplies it to the font data converter (12). The converted data is stored in the image memory (3) under the control of the image memory control circuit (4).
), and is read out from this image memory (3) and displayed on the monitor television (7) as shown in FIG. 3. When dial information is specified by moving the cursor using the up or down key and operating the enter key (19) at the desired cursor position, the CPU (8) switches the selector (15) and transfers the data to the buffer memory. Send the dial data read from (10) to the dialer.

[0100] The selector (15) is a switching circuit that controls the input path of dial data to a dialer (not shown), and based on instructions from the CPU (8), dial data input from the keyboard (9) It switches between supplying information immediately to the dialer circuit or supplying dial data read from the buffer memory (10) to the dialer in response to the redial function. The dialer outputs a dial signal corresponding to the input dial data to the telephone line. According to the above configuration, a desired dial can be selected from the contents displayed on the monitor television based on past dial records, and dialed by operating the cursor.

[0110]

As explained above, according to the present invention, by providing a buffer memory for storing dial information and reading out the stored dial and displaying it on a monitor television,
Multiple phone numbers dialed in the past can be redialed with a simple operation, and by adding a simple configuration for dial memorization, the TV monitor equipped with the videophone can be effectively used to improve operability. A telephone device with a redial function can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart for explaining the dialing operation of the same embodiment.

FIG. 3 is a screen of a monitor television showing the display state of the same embodiment.

[Explanation of symbols]

(1) Camera (3) Image memory (4) Image memory control circuit (7) Monitor TV (8) CPU (9) Keyboard (11) Buffer memory control circuit (12) Font data exchange circuit (13) Hook switch state detection Device (14) Hook switch

Claims (1)

[Claims] Claim 1: A video telephone device comprising a camera section for capturing images, an image memory section for storing image data, a monitor television section for displaying images, and a modem section for transmitting and receiving image data. means for detecting the state of the hook switch; a memory having a capacity to store a plurality of pieces of dial information; a means for converting the dial information in the memory into a signal for display; and a means for reading the dial information from the memory. A television comprising: input means for instructing display on a television monitor; and a control section for reading out dial information from the memory in response to commands from the input means and controlling output to the television monitor. Telephone device.