KR970031747A - Phone call history display device and method - Google Patents

Abstract

The present invention relates to an apparatus and method for displaying a call history of a telephone, and more particularly, to an apparatus and method for displaying a call history of a telephone to enable a user to easily search for and verify a telephone charge or a telephone history in a service establishment or a home where a public telephone is not installed. will be.

Conventionally, it is difficult to estimate the call charge before the telephone bill is issued by the telephone company. In the case of a telephone used by several people, it is impossible to know how much the call charge is during or immediately after the call. There is a problem that the search and confirmation of the call history is impossible even if the user has a distrust of the call rate calculation.

Therefore, the call history display apparatus and method of the telephone according to the present invention have been devised to solve various problems according to the prior art, and the call history display apparatus of the telephone according to the present invention includes a handset; A dial button unit for allowing a caller to input a phone number of the other party to be called; A transmitter / receiver function for performing a transmission / reception function according to an input signal of the handset and the dial button unit, and an MCU which performs calculation, data processing and control functions of signals output from the dial button unit and the transmission / reception function unit; Characterized in that it consists of an output unit for displaying and printing the data output from the MCU.

In addition, a method for displaying a call history of a telephone according to the present invention is a first step of determining whether a reception flag is a signal received by a user, that is, a set and a reset, when the telephone is in a handset and the telephone is in an on-line state. and; A second step of performing a corresponding reception function when the reception flag is determined to be a reception signal in the first step; and determining whether to talk with the other party by recording a phone number input by the user in a phone number buffer when it is determined that the reception flag is a reception signal. A step; A third step of recording the time at which the call is started with the other party in the second step in a start buffer, and determining the end time of the call; and recording the end time in the end buffer when the call is terminated in the third step; A fourth step of storing data recorded in the telephone number buffer, the start buffer, and the end buffer in a memory and feeding back to the handset standby state; A fifth step of inputting a search display key by the user when the user wants to search the call history in the handset state of the fourth step; A sixth step of determining whether the comparison is completed by recording the display signal to be searched in the fifth step into a search buffer and comparing the content recorded in the search buffer with the content stored in the memory in the fourth step; and; When the comparison is completed in the sixth step, characterized in that the seventh step to display the searched content.

The call history display apparatus and method of the telephone according to the present invention easily display the call history by the telephone display device itself when a service provider or a home that does not have a public telephone installed to check the call history. When you need a phone number or expect a phone number before, or you want to check whether the fax is sent out, it is convenient to search and verify.

Description

Phone call history display device and method

Since this is an open matter, no full text was included.

1 is a block diagram of a call display device of the telephone according to the present invention.

2 is an operational flowchart showing a call history display method of a telephone according to the present invention.

Claims (4)

A handset; A dial button unit for allowing a caller to input a phone number of the other party to be called; A transmission and reception function for performing a transmission and reception function according to an input signal of the handset and the dial button unit; A MCU which performs calculation, data processing and control functions of signals output from the dial button unit and the transmission / reception function unit; Call display device of the telephone, characterized in that consisting of an output unit for displaying and printing the data output from the MCU. 2. The system of claim 1, wherein the MCU comprises: a reception flag in which the state of the handset is set or reset depending on whether transmission / reception is performed; An A / D converter for converting an analog signal input from the dial button unit into a digital signal; A buffer unit which temporarily stores the recording data input by the user; A memory for storing contents of the buffer unit and displaying recorded contents according to a user's search display input; A CPU for comparing the contents of the buffer unit with the memory and in charge of overall control; An input / output control unit for controlling input / output of data; Call display device of the telephone, characterized in that the output unit for outputting a variety of messages by displaying the search content desired by the user. The terminal of claim 2, wherein the buffer unit comprises a telephone number buffer inputted by a user, a start buffer storing a call start time according to a call start signal, and an end of storing call end time according to a call end signal. And a search buffer for storing the contents of the buffer when the contents to be searched by the user are input after the search display key is input. A first step of determining whether a reception flag is a signal received by a user, that is, a set and a reset, when the handset state of the telephone is in an on-line state in the telephone waiting for the handset; A second step of performing a corresponding reception function when the reception flag is determined to be a reception signal in the first step; and determining whether to talk with the other party by recording a phone number input by the user in a phone number buffer when it is determined that the reception flag is a reception signal. A step; A third step of recording the time at which the call with the other party started in the second step in a start buffer and determining the end time of the call; A fourth step of recording an end time in an end buffer when the call is ended and storing data recorded in the telephone number buffer, the start buffer, and the end buffer in a memory and feeding back to a handset standby state; A fifth step of inputting a search display key by the user when the user wants to search the call history in the handset state of the fourth step; A sixth step of determining whether the comparison is completed by recording the display signal to be searched in the fifth step into a search buffer and comparing the content recorded in the search buffer with the content stored in the memory in the fourth step; and; And a seventh step of displaying the searched content when the comparison is completed in the sixth step. ※ Note: The disclosure is based on the initial application.