KR20020017119A - The device of display for a portable - Google Patents

Abstract

PURPOSE: A portable display unit is provided to make up for the weak points in a communication equipment having a small screen by installing an interface sending and receiving data and an additional exclusive display unit. CONSTITUTION: A send and receive interface(200-3) includes an interface receiving image and voice signals for converting the signals into data appropriate for a communication protocol and outputting converted data. A send and receive part(200-2) sends and receives data outputted from the send and receive interface(200-3). A CPU(202) generally controls an exclusive display unit, receives the communication protocol provided from an internal memory, and outputs various control signals. A signal processing part(200-1) digitally processes data sent and received according to the signals of the CPU(202). A key input part inputs various input information as key signals. An exclusive display includes a large screen more than regular size and expresses various information of a communication equipment applied by the control signals of the CPU(202).

Description

Portable display device {The device of display for a portable}

The present invention relates to a technology for providing a convenient use of a general portable communication device, and more particularly, a communication device, for example, an interface for transmitting and receiving data between mobile phones, PDAs, etc., and a large screen having a certain size. The present invention relates to a portable display device provided with a dedicated display device to compensate for the disadvantages of a small screen communication device.

A typical mobile phone is composed of an RF unit, a modulation / demodulation unit, a central processing unit (CPU) and a memory, a display, a keypad, and a battery. The RF unit receives a frequency corresponding to the operating frequency range of the mobile phone through an antenna or The modulation and demodulation unit is connected between the CPU and the memory to convert the digital signal into an analog signal to transmit the digital bit string to the analog communication channel, and converts the input analog signal into a digital signal, while the CPU and the memory are keypads. It processes the information input through the microphone and sends it to the demodulation demodulator or processes the digital signal from the demodulation and displays the information necessary for the display such as LCD or outputs it through the speaker.

Accordingly, it is inevitable that a series of processes through which a user directly inputs and processes information is performed through the display, and this display size is very closely related to increasing user convenience. Therefore, it is desirable to increase the size of the display more than a certain size, but the size of the display device tends to be contrary to the characteristics of the communication device that pursues the volume of the entire mobile phone, that is, light and small.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object thereof is to provide a communication device, for example, an interface capable of transmitting and receiving data between mobile phones, PDAs, and the like, and a separate dedicated display device having a predetermined size screen. The present invention provides a portable display device that can compensate for a problem in a communication device that has to be limited in size.

1 is a state diagram used to connect the present invention portable display device,

2 is a connection diagram showing the internal connection of FIG.

3 is an internal configuration diagram of the interface of FIG. 2.

<Description of the symbols for the main parts of the drawings>

10: communication device, 20: display device,

201: dedicated display, 202: central processing unit (CPU),

203: key input unit, 204: memory unit,

200-1: signal processing unit, 200-2: transceiver unit,

200-3: transmission and reception interface unit.

The present invention for achieving the above object is an RF unit for receiving or transmitting a frequency corresponding to the use frequency range of the mobile phone through the antenna, and digital signals to transmit the digital signal to the analog communication channel in the form of an analog signal channel A modulation demodulation unit that converts an input analog signal into a digital signal, and processes information input through a keypad or a microphone to send it to the modulation demodulation unit, or processes digital signals from the modulation demodulation to display information necessary for a display such as an LCD; A conventional portable communication device having a CPU and a memory unit for controlling output through a speaker, comprising: a transmission / reception interface unit having an interface for receiving video and audio signals and converting the data into data corresponding to a communication protocol; Sending and receiving data output from A CPU which collectively controls a receiver, a dedicated display device, receives a communication protocol from an internal memory unit, and outputs various control signals, a signal processor that digitally processes data transmitted and received according to the signal of the controller, and various input information. Is provided with a key input unit for inputting a signal as a key signal, and a dedicated display for displaying a variety of information of the communication device applied as a control signal of a signal processor and a CPU, having a large screen of a predetermined size or more.

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

1 and 2 are diagrams illustrating a state in which the portable display device and the communication device of the present invention are connected, and FIG. 2 is a connection diagram showing an internal connection of FIG. 1.

A typical mobile phone 10 is composed of an RF unit 100, a modulation / demodulation unit 101, a central processing unit (CP U) and a memory 102, a display 103, a keypad, a battery 104, and the like. Since the same configuration is the same as the conventional one, a detailed description thereof will be avoided, and descriptions related to the interface 105 and the portable display device of the communication device to which the present invention is added are as follows.

First, the portable display device 20 is made to be much larger than a display screen such as an LCD of a communication device, and is provided with a dedicated keypad input means and a memory means, as well as a communication means as necessary. In other words, it can be manufactured to enable independent operation rather than connection with a communication device.

Meanwhile, when the dedicated display device 20 is connected to a portable communication device, the dedicated display device 20 can be connected to and operate either wired or wireless, and also selectively controls the keypad of the dedicated display device or the display screen of the portable communication device. It is preferable in operation.

As shown in FIG. 3, the configuration of the interface 200 applied to enable the mutual operation is a transmission / reception interface unit having an interface for receiving a video and audio signal and converting the data into data corresponding to a communication protocol. 3), the transmission and reception unit 200-2 for transmitting and receiving data output from the transmission and reception interface unit 200-3, and the dedicated display apparatus 20 are collectively controlled and the communication protocol is controlled from the internal memory unit 204. CPU 202 for receiving and outputting various control signals, a signal processing unit 2002-1 for digitally processing data transmitted and received according to the signal of the CPU 202, and a key for inputting various input information as key signals. It consists of an input unit 203, a dedicated display 201 having a large screen of a predetermined size or more and displaying various information of the communication device applied as a control signal of the signal processing unit 200-1 and the CPU 202. Lose.

According to the present invention configured as described above, when a keypad input signal of the communication device 10 is input in a state in which a dedicated display device 20 is connected to the communication device 10 in a wired or wireless manner, the CPU and the memory 102 are connected to the keypad. Process the input information to send to the demodulation demodulator 101 or to process the digital signal from the demodulation demodulator 101 to display the necessary information on the display 103, such as LCD or output through the speaker, the dedicated display device (2) The CPU 202 of 0) receives the video and audio signals applied from the interface 105 of the communication device 10 in controlling the program recorded in the memory unit 204, that is, the communication protocol. The signal processing unit 200-1 digitally processes the signals through the transmission and reception interface unit 200-3 and the transmission and reception unit 200-2 to convert the data into correct data and output the same. Thereafter, the signal applied from the signal processing unit 200-1 is displayed on each dedicated display 20 1 or a voice signal is generated by the speaker.

Accordingly, a variety of information is displayed on the dedicated display device 20 having a large screen according to a signal applied from the communication device 10, which is very convenient for a user who is not familiar with a small screen.

As described above, the present invention provides an interface capable of transmitting and receiving data between mobile phones, PDAs, and the like, and a separate dedicated display device having a screen of a certain size to compensate for the shortcomings of existing communication devices with small screens. It has the features that make it possible.

Claims (2)

RF unit 100 for receiving or transmitting a frequency corresponding to the use frequency range of the mobile phone through an antenna, and converts a digital signal into an analog signal to transmit a digital bit string to an analog communication channel, and inputs an analog signal A modulation demodulation unit 101 for converting a digital signal into a digital signal, and processing information input through a keypad or a microphone to send to the modulation demodulation unit or processing a digital signal from the modulation / demodulation unit to display necessary information on a display 103 such as an LCD or In a conventional portable communication device having a CPU and a memory unit 102 for controlling output through a speaker, Transceiver interface unit 200-3 having an interface for receiving video and audio signals and converting the data into data corresponding to a communication protocol, and transmitting and receiving unit 200 for transmitting and receiving data output from the transceiving interface unit 200-3. -2), a CPU 202 which collectively controls a dedicated display device, receives a communication protocol from an internal memory unit, and outputs various control signals, and digitally processes data transmitted and received according to the signal of the CPU 202; The signal processor 200-1, a key input unit 203 for inputting various types of input information as key signals, and a large screen having a predetermined size or more, and control signals of the signal processor 200-1 and the CPU 202. And a dedicated displayer (201) for displaying various information of the communication device. The portable display apparatus according to claim 1, wherein the display information displayed on the portable communication device (10) and the dedicated display apparatus (20) can be limited to any one.