KR0171281B1 - Memory searching method of wireless telephone and its apparatus - Google Patents

Abstract

The present invention relates to a memory number search apparatus and method for a wireless telephone, and to solve the problem of a conventional dial number caused by an inadequate dialing, a wireless transmitter and receiver, a central processing unit, a dial driver, a trunk line controller, A call unit, a line interface, a key input unit for inputting and calling memory numbers into the memory of the central processing unit, a memory retrieval unit for retrieving memory numbers stored in the memory of the central processing unit, and a memory number retrieved from the memory retrieval unit A key data input process for inputting a shortcut number and a phone number into the memory by determining whether a key is input by using a memory number search device including a memory number display unit configured to allow a user to view the voltage, and a voltage applied after the key data input process. You can use or check the memorized speed dial number and phone number according to the level change of. After the number display process is performed and the number display process is performed, the telephone number is transmitted according to the judgment of the call request by the user. Can increase efficiency.

Description

Memory retrieval device of wireless telephone and method

1 is a block diagram of a conventional wireless telephone.

2 is an external configuration diagram of a wireless telephone in which the present invention is located.

3 is a block diagram of a radiotelephone according to the present invention.

FIG. 4 is a detailed circuit diagram of the embodiment of the memory searching unit in FIG.

5 is a flowchart of a memory number search control process according to the present invention;

* Explanation of symbols for main parts of the drawings

10: wireless transceiver 20: line interface

30: trunk line controller 40: dial driver

50: key input unit 60: call unit

70: central processing unit 80: memory number display unit

90: memory search unit 91: memory number search unit

92: A / D converter 93: Standby display driver

94: standby state display unit 95: transmission selection unit

100: cordless phone

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless telephone, and more particularly, to a memory retrieval apparatus and a method of a wireless telephone for making a call after directly searching the memory number stored in the wireless telephone by selection of a rotary or electronic switch by a user. .

As shown in FIG. 1, the prior art configuration includes a wireless transceiver 10 for transmitting and receiving wireless data and a voice signal, a key input unit 50 for inputting a dial number, and a key input unit 50. Dial driver 40 for transmitting the dial input through the line, line interface 20 for interfacing the incoming signal to the trunk line, trunk line control unit 30 for controlling the telephone line through the line interface 20, and all parts The central processing unit 70 for controlling the and the voice signal received through the microphone (MIC) and the voice signal transmitted through the speaker (SPK) is separated into a transmission unit 60 for transmission.

In the conventional operation, the phone number to be stored in the key input unit 50 is stored using a shortcut button to store the phone number in the memory (ROM) of the central processing unit 70 by performing a one-touch and two-touch memory function.

For example, to memorize the phone number you want to memorize, press' shortcut '+' address number (0-9 or one touch) + 'phone number' ++ 'shortcut' in order to memorize the phone number. When the information stored in the memory of the central processing unit 70 is output and used, which is the first when the user presses the 'call' button through the key input unit 50, after recognizing this in the central processing unit 70, By controlling the CO line control unit 30 to transmit the dial tone through the line interface 20 to the speaker (SPK) through the call unit 60, pressing the 'short cut' + address number (0-09 or one-touch) is stored The telephone number was withdrawn from the memory of the central processing unit 70, and the dial driving unit 40 was driven and sent out through the line interface 20.

However, the prior art is a method of transmitting a dial by searching for the speed dial number of the other party so that the user remembers the stored phone number or calls the paper by the marked paper. There was a problem such as a dial error of the user calling the other party.

The present invention provides a memory retrieval apparatus and method for a wireless telephone for making a call after searching a memory number (shortcut number and telephone number) stored by a variable switch to solve a problem. The purpose is to provide.

The present invention for achieving the above object will be described in detail with reference to the accompanying drawings.

First, as shown in FIG. 2, the external configuration of the present invention is composed of a number and a specific key (eg, *, #, etc.) of the wireless telephone 100 so that a user selects a key to input data. Memory number search unit 91 using an input unit 50, a rotary switch (aka jog shuttle) or an electronic switch, and a standby state display unit 94 using a center of the memory number search unit 91 and a light emitting diode (LED). A delivery selector 95 is attached to the bottom surface.

According to the configuration of the wireless telephone of the present invention according to the above configuration, as shown in FIG. 3, a key input unit 50 for inputting or calling a memory number into or out of a memory of the central processing unit 70, and the key input unit 50; Dial line 40 for transmitting the memory number input through the line, a line interface 20 for interfacing with a trunk line, and a telephone line for transmitting the memory number sent from the dial driver 40; The trunk line control unit 30 controlling through 20, the wireless transmission and reception unit 10 for transmitting and receiving wireless data and voice signals, and the voice received through the wireless transmission and reception unit 10 and the trunk line control unit 30. A communication unit 60 for separating and transmitting a signal and a transmitted audio signal, a memory retrieval unit 90 for retrieving a memory number stored in a memory of the central processing unit 70, and the memory retrieval unit 90 Memory retrieved from A memory number display unit 80 for displaying the number for the user to view, and a central processing unit 70 for controlling each circuit unit.

According to the embodiment of the memory searching unit 90, as shown in FIG. 4, an electronic switch or a rotary switch (also referred to as a level of a predetermined voltage applied to the user to use or confirm a short dial among memory numbers in a standby state) The memory number search unit 91, which is changed by a jog shuttle, to search for a memory number, and converts an analog signal having a voltage level changed by the memory number search unit 91 into a digital signal corresponding to the short number. A standby state according to the control signal of the A / D conversion unit 92 output to the central processing unit 70 and the central processing unit 70 that recognizes the digital signal output from the A / D conversion unit 92 To display the standby state in accordance with the standby state display driver 93 using the transistor Q1 to drive the display unit 94 and the control signal (that is, the on / off signal) of the standby state display driver 93. With light emitting diode (LED) Generated consists of the standby display 94 and a transmission selector (95) for selecting the transmission of the memory number displayed on the number display memory 80 to the call.

Referring to the operation of the present invention by the above configuration as follows.

Prior to the description, a method of inputting a shortcut number by the memory number search unit 91 using an electronic switch (variable resistor) or a rotary switch is 'send' + 'shortcut number (0-15)' + 'send' Press the + 'phone number' + 'send' button one by one to enter the memory (ROM) of the central processing unit 70 to store the speed dials 0-15 and to output them.

In performing the dial memory function, the corresponding display is displayed on the memory number display unit 80 according to the selection of the key input unit 50, and the user inputs it with visual confirmation, and uses or confirms the stored speed dial. In this case, as shown in FIG. 4, the memory number search unit 91 is rotated in the standby state, that is, the input signal voltage (V _RT : high voltage, R _RB : low voltage corresponding to the rotation of the switch SW1). A / D conversion unit 92 recognizes this level and converts the signal into a digital signal and transmits the signal to the central processing unit 70 as shown in Table 1 below. The device 70 analyzes the memory number, i.e., the speed dial number and the telephone number, from the memory and displays it on the memory number display unit 80.

When there is a level change of the memory number search unit 91, the central processing unit 70 recognizes a digital signal transmitted through the A / D conversion unit 92, and a shortcut number and a telephone corresponding to the data are recognized. The transistor Q1 is turned on by displaying the number on the memory number display unit 80 and simultaneously converting the base voltage of the transistor Q1 from the low state to the high state, thereby turning on the light emitting diode (LED). Lights up to indicate standby status.

In the memory number search method of the present invention operating as described above, a key data input process of inputting (or storing) a shortcut number and a phone number into a memory by determining whether a key is input, and a voltage level applied after the key data input process is performed. According to the change, the number display process for displaying the stored speed dial number and the phone number so that the user can use or confirm, and after performing the number display process to send out the phone number in accordance with the call request decision by the user's selection The phone number is sent out.

Accordingly, the key data input process waits when there is a call key selection determination step (S1) for determining whether the user has selected a call key on the key input unit (50), and a call key selection with the pager selection determination (S1). The step (S2) of lighting the status display unit 94 and preparing the display of the memory number display unit 80, and then the user inputs the 'shortcut number' + 'call' + 'phone number' + 'call' key (selection). (3) storing the input memory number (short dial and telephone number) in the memory (ROM) when there is a key input as the key input determination (S3). (S4), and the standby state display unit 94 blinks and the memory number display unit 80 is reset (S5).

After the standby state display unit 94 flashes and the memory number display unit 70 reset, the number display process changes the voltage level according to an electronic switch (or rotary switch) adjustment, which is an example of the user's memory number search unit 91. When the voltage level is changed by the voltage level change determination step (S6) and the voltage level change determination (S6) to display the standby state to inform the standby state of use and the voltage on the memory number display unit 80 A display number confirmation step (S7) is performed to display the stored shortcut number and the corresponding telephone number by the digital code corresponding to the level change so that the user can confirm it.

After confirming the display number by the user (S7), the telephone number transmission process is a call request determination step for determining whether there is a call request by the user, that is, whether the play key of the play selection unit 95 has been selected (selected trunk line). (S8) and if there is no call request by the call request determination (S8), it is searched whether a predetermined time (about 10 seconds) has elapsed (S11) and when the predetermined time has elapsed, the control of the central processing unit 70 In step S13, the standby state display unit 94 flashes and the memory number display unit 80 is reset (S12), and when there is a call request by the call request determination (S8), the central processing unit 70 Recognizing that there is a call request and controlling the CO line control unit 30 to connect the CO line, and the electronic memory stored in the memory (ROM) in accordance with the drive of the dial driver 40 after the CO line connection Dial selected by switch (aka jog shuttle) Withdrawing the number is sent to the telephone number through the dial driver 40 is made to the step (S10).

In accordance with the operation of the present invention, the user stores the phone number of another person in the memory along with the speed dial number at any time, and then searches the memory number by an electronic switch (or a rotary switch) to view and confirm the searched contents to find the corresponding phone number. It is easy to talk with others by sending.

As described above, the present invention can increase the efficiency of a wireless telephone by preventing a user's dial-up from calling a counterpart other than the desired place due to a user's misrepresentation of a memory or a user's inability to know the memory contents of a user's memory number.

Claims (4)

The memory number search unit 91 searches for a memory number by changing a level of a predetermined voltage applied for the user to use or confirm a speed dial among the memory numbers, and the memory number search unit 91 changes the number of speed dials. An A / D converter 92 for converting an analog signal of a voltage level into a digital signal corresponding to an abbreviated number and outputting the digital signal output from the A / D converter 92 to the central processing unit 70; In accordance with the recognized control signal of the CPU 70, the standby state display driver 93 for driving the standby state display unit 94 and the standby state display driver 93 according to the on and off A standby state display unit 94 for displaying a standby state for use, and a transmission selector 95 for selecting the transmission of the memory number displayed on the memory number display unit for making a call and stored in the memory of the central processing unit 70. Memory number search Is a memory retrieval unit 90, a memory number display unit 80 for displaying a memory number retrieved by the memory retrieval unit 90 for the user to view, and a central processing unit 70 for controlling each circuit unit. A memory retrieval device for a wireless telephone. 2. The memory retrieval device for a radiotelephone according to claim 1, wherein said memory number search unit (91) is composed of an electronic switch for changing a resistance to change a voltage level. 2. The memory retrieval device for a radiotelephone according to claim 1, wherein said memory number search unit (91) comprises a rotary switch for changing a resistance to change a voltage level. A key data input process of inputting a shortcut number and a telephone number into a memory by determining whether a key is input, a voltage level change determining step of determining whether a voltage level is changed according to a user's electronic switch (or rotary switch) adjustment; When the voltage level is changed by the determination of the voltage level change, the standby state is displayed to inform the standby state of use, and the display number is confirmed to be displayed by the user by displaying a shortcut number and a corresponding telephone number stored on the memory number display unit. And a number display process for displaying the stored speed dial number and the phone number so that the user can use or confirm the stored speed number and the telephone number according to the change in the level of the voltage applied after the key data input process. Send phone number by calling phone number according to judgment of call request How to search the memory of the more than calls made to wireless telephones telephone number sending process.