KR20000041521A - Portable digital monitoring system - Google Patents

Abstract

PURPOSE: A portable monitoring system is provided, so that a transmitter and a receiver can talk over the phone as watching a displayed screen to each other, by transmitting image signals and character signals photographed by a camera to the receiver through a handy terminal, and by making the receiver receive the image signals and the character signals through the handy terminal. CONSTITUTION: A portable monitoring system comprises a portable digital monitoring device (100) and a portable terminal (200). The portable digital monitoring device codes image signals and character signals to transmit the signals, and receives the image/the character signals from a receiver to decode and display the signals. The portable terminal connects the receiver with a speech line according to transmitter operations, and transmits the image/the character signals transmitted from the portable digital monitoring device to the receiver. The portable terminal transmits the image/the character signals transmitted from the receiver to the portable digital monitoring device. The portable digital monitoring device comprises a key input circuit (155), a characters generator (110), a camera (115), an image CODEC (coder-decoder) (120), a displayer (125), a signal processor (130), a controller (135), a memory (140), a communication interface (145), and a jack connector (150). The image CODEC codes the image signals photographed by the camera, and codes the character signals to decode the image/the character signals received from the portable terminal. The displayer displays a freeze frame decoded by the image CODEC or the character signals on a screen. The signal processor processes of signals of the image/the character signals. The controller controls the portable digital monitoring device to transceive the signally-processed signals with the receiver. The memory transceive every information with the controller and stores the information. The communication interface transceives the image/the character signals and sound signals, according to a communication protocol. A jack is connected with the jack connector to perform communication between the portable digital monitoring device and the portable terminal.

Description

Portable digital monitoring system

The present invention relates to a portable digital monitoring system.

More specifically, the video signal and text signal captured by the camera is transmitted to the receiver through the portable terminal, and the video signal and text signal of the receiver are transmitted through the portable terminal so that the user can make a call while viewing the displayed screens. It relates to a portable digital monitoring system.

The general telephone is only able to transmit and receive voice, so you can not see the face of the caller or important data during the call.

In modern life that demands the convenience of living, many researches have been conducted on video telephones and video communication systems that can simultaneously transmit and receive image information and text data signals together with voice signals using telephones. Although used, the performance and quality of the product is somewhat reduced, there is a difficulty in the installation cost of the talker and the product is expensive.

1 is a schematic device block diagram of a conventional video telephone system.

As shown, a camera unit 11 for photographing a predetermined subject, an image codec unit 12 for encoding and decoding an image signal photographed by the camera unit 11, and an image codec A display unit 13 for displaying a video signal processed by the unit 12 on a screen, a microphone unit 14 to which an audio signal is input, and an audio signal to encode and decode the audio signal input to the microphone unit 14; The codec unit 15, the speaker 16 to which the audio signal processed by the audio codec unit 15 is amplified and output, and the video and audio signals output from the video codec unit 12 and the audio codec unit 15. A signal synthesizing / separating unit 17 for synthesizing or separating information based on a synchronization signal and processing information signals, and a control unit for transmitting and receiving signals synthesized and separated by the signal synthesizing / separating unit 17 and controlling the entire system ( 18 and a memory 19 which transmits / receives information to / from the control unit 18 and stores all the information. And a communication interface 20 for transmitting and receiving video and audio information through a telephone line network according to a communication protocol.

Therefore, the conventional video telephone system configured as described above is not portable and is used for video telephony purposes, and therefore is not only used in extremely limited applications and places, but also has a high price and high compression amount of moving images for telephone line transmission. There was a problem of this deterioration.

Accordingly, an object of the present invention is to transmit the image signal and the text signal captured by the camera to the receiver through the portable terminal, and to receive the receiver's image signal and the text signal through the portable terminal to solve the above problems. The present invention provides a portable digital monitoring system that allows a user to make a call while viewing the displayed screen.

1 is a schematic device block diagram of a conventional video telephone system;

2 is a view for explaining a portable digital monitoring system according to the present invention;

3 is a block diagram illustrating a configuration of a portable digital monitoring apparatus applied to a portable digital monitoring system according to the present invention.

4 is a state diagram when the portable digital monitoring system according to the present invention uses a vehicle battery as an auxiliary power source.

* Description of Signs of Main Parts of Drawings *

100: portable digital monitoring device

110: character generator 115: camera

120: video codec unit 125: display unit

130: signal processing unit 135: control unit

140: memory 145: communication interface unit

150: jack connection 155: key input

160: microphone 165: voice codec unit

170: speaker

The present invention for achieving the above object is to encode the image signal or the text signal photographed according to the intention of the sender, and then to process the signal, and to receive and decode the image signal or text signal transmitted from the receiver The portable digital monitoring device connects the caller and the call line according to the caller's operation, and transmits a video signal or a text signal transmitted from the portable digital monitoring device connected through the jack to the caller connected to the call line. And a portable terminal for transmitting an image signal or a text signal received from the portable digital monitor.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a view for explaining a portable digital monitoring system according to the present invention, as shown in the configuration is as follows.

The portable digital monitoring apparatus 100 encodes an image signal photographed according to the intention of the talker or a text signal input by the talker, processes the signal and transmits the signal, and receives the video signal or the text signal transmitted from the talker. Decode and display for viewing.

The portable terminal 200 connects the caller and the call line according to the caller's operation, and transmits an image signal or a text signal transmitted from the portable digital monitoring apparatus 100 connected through the jack to the caller connected to the call line. The image signal or the text signal received from the talker is transmitted to the portable digital monitor device 100.

The above-described portable terminal 200 is a cellular phone, a PCS, an IMT 2000, or the like.

3 is a block diagram illustrating a configuration of a portable digital monitoring apparatus applied to a portable digital monitoring system according to the present invention.

As shown in the figure, a mode selection button for changing the mode of the portable digital monitoring apparatus 100 is provided, and a key input unit 155 for inputting a text signal to be transmitted to the talker according to the intention of the talker, and the controller ( A character generator 110 for generating a character signal according to the character generation control signal of 135, a camera 115 for photographing an object by a lens, and an image signal photographed by the camera 115; An image codec unit 120 that encodes a text signal generated by the character generator 110 and decodes an image signal and a text signal received from the portable terminal 200, and decodes the image signal by the image codec unit 120. A display unit 125 for displaying the still image or text signal on the screen, a signal processor 130 for signal-processing the video and text signals output from the video codec unit 120, and the signal processor 1 A control unit 135 for controlling transmission and reception of a signal processed by the receiver 30 with the receiver, a memory 140 transmitting and receiving with the control unit 135 and storing all information, and transmitting and receiving with the control unit 135. And a communication interface unit 145 for transmitting and receiving images, text signals, and audio signals according to a communication protocol, and a jack connection unit 150 having a jack connected to enable communication between the portable digital monitoring apparatus 100 and the portable terminal 200. It is composed of

In addition, the above-described portable digital monitoring device 100 is configured to separately provide an auxiliary power supply unit to supply power in case of emergency.

In addition, the portable digital monitoring device 100 described above is a system that can be carried in a vehicle, and at this time, a cigar jack is formed on the cigar jack connector provided in the vehicle by forming a cigar jack using an adapter in the power connector of the digital monitoring device. When inserted, the battery power of the vehicle supplied through the cigar jack can be used as an auxiliary power source (see FIG. 4).

In addition, the above-described portable digital monitoring apparatus 100 receives a voice signal of a talker and converts the microphone 160 into an electrical signal, and encodes a voice signal converted into an electrical signal by the microphone 160 to control the controller 135. A voice codec unit 165 for transmitting to a talker through a communication interface unit 145 according to a control signal of the control unit, and decoding and outputting a voice signal of a receiver received through the communication interface unit 145, and the voice codec. Further comprising a speaker 170 for outputting the voice signal decoded by the unit 165 to the outside, portable digital through a call line formed by the portable terminal without using the speaker or microphone provided in the portable terminal 200 described above. By using only the monitoring device 100 is configured to be able to talk to the called party.

The operation of the portable digital monitoring system according to the present invention configured as described above will be described in more detail with reference to the accompanying drawings.

When the talker makes a call by using the portable terminal 200 to form a call line, the talker is photographed by a lens (not shown) built in the camera 115, and the photographed caller's image signal is Is converted into a signal and is input to the image codec unit 120.

The input image signal is encoded by the image codec unit 120 and then output to the signal processor 130. Then, the signal processor 130 processes the hatched image signal and transmits the signal to the called party through the communication interface 145 and the portable terminal 200 according to the control signal of the controller 135.

In addition, the voice of the caller is transmitted via the portable terminal 200.

At this time, when the talker inputs a text signal using the key input unit 155 to transmit a text signal to the talker, the controller 135 generates a character generation control signal corresponding to the text signal input through the key input unit 155. Output to the character generator 110.

Then, the character generator 110 outputs the character signal to the image codec unit 120 in response to the character generation control signal, and the image codec unit 120 encodes the character signal.

The text signal encoded as described above is signal-processed through the signal processor 130 and then transmitted to the called party through the communication interface 145 and the portable terminal 200 according to the control signal of the controller 135.

In this case, the signal transmitted to the called party may be stored in the memory 140 according to a command condition given to the controller 135.

In addition, the face or voice of the receiver proceeds in the reverse order of the above procedure. That is, the image signal or the text signal of the receiver, which is received through the portable terminal 200, is first input to the signal processor 130 according to the control signal of the controller 135 via the communication interface 145.

Then, the signal processor 130 processes the image signal or the text signal received from the talker, decodes the video signal through the video codec 120, and outputs the signal to the display unit 125 to send the face or text signal of the talker to the talker. Display for viewing.

At this time, the voice signal of the caller and the voice signal of the receiver are made through a microphone and a speaker provided in the portable terminal 200.

If the caller wants to talk to the talker through the microphone 160 or the speaker 170 provided in the portable digital monitoring apparatus 100 without passing through the microphone and the speaker provided in the portable terminal 200, the key input unit 155 After selecting the call mode through the microphone 160 provided in the portable digital monitoring device 100 inputs the voice signal of the caller.

Then, the microphone 160 converts the voice signal of the talker into an electrical signal and outputs it to the voice codec unit 165. The voice codec unit 165 encodes the input voice signal and then controls the control signal of the controller 135. In accordance with the communication interface 145, jack connection 150 and the portable terminal 200 is transmitted to the called party.

In addition, the voice signal of the called party received through the portable terminal 200 is output to the voice codec unit 165 according to the control signal of the controller 135 and decoded. The decoded voice signal is output to the outside so that the talker can hear through the speaker 170.

The above-described image communication is a still picture, but may be implemented as a moving picture.

Therefore, as described above, the present invention can be used by connecting the portable digital monitoring device to the portable terminal, so that the communication area of the portable communication terminal can perform video communication with the receiver regardless of the place, and also perform video communication. In addition, there is an effect that can send and receive text signals.

Claims (5)

A portable digital monitoring apparatus for encoding and processing image signals or text signals photographed according to a sender's intention, receiving, decoding and displaying image signals or text signals transmitted from a talker; And Connects the caller and the call line according to the caller's operation, transmits the video signal or the text signal transmitted from the portable digital monitoring device connected through the jack to the caller connected by the call line, and receives the video signal received from the caller or Portable digital monitoring system comprising a portable terminal for transmitting a text signal to the portable digital monitoring device. The portable digital monitoring device of claim 1, further comprising: a portable digital monitoring device; A key input unit for inputting a text signal to be transmitted to the called party according to the intention of the calling party; A character generator which generates a character signal according to a character generation control signal; A camera for photographing an object by a lens; An image codec unit encoding an image signal photographed by the camera, encoding a text signal generated by the text generator, and decoding a video signal and a text signal received from a portable terminal; A display unit which displays a still image or a text signal decoded by the image codec unit on a screen; A signal processor for signal-processing the video and text signals output from the video codec unit; A controller for controlling the signal processed by the signal processor to transmit and receive the signal; A memory for transmitting and receiving with the controller and storing all information; A communication interface for transmitting and receiving to and from the controller and transmitting and receiving an image, a text signal, and an audio signal according to a communication protocol; And A portable digital monitoring system comprising a jack connection unit connected to the jack so that the portable digital monitoring device and the portable terminal can communicate with each other. 3. The portable digital monitoring device of claim 2, further comprising: a portable digital monitoring device; Portable digital monitoring system, characterized in that the auxiliary power supply is provided separately. 3. The portable digital monitoring device of claim 2, further comprising: a portable digital monitoring device; Portable digital monitoring system, characterized in that using the power of the vehicle battery supplied through the cigar jack as an auxiliary power source. 3. The portable digital monitoring device of claim 2, further comprising: a portable digital monitoring device; A microphone which receives a talker's voice signal and converts the voice signal into an electrical signal; A voice codec unit for encoding a voice signal converted into an electrical signal by the microphone and transmitting the voice signal to a receiver through a communication interface unit according to a control signal of a controller, and decoding and outputting a voice signal of a receiver received through the communication interface unit; And And a speaker configured to output the voice signal decoded by the voice codec unit to the outside.