KR940004933B1 - Method of displaying a screen in cassette player - Google Patents

Abstract

The method analyzes a result of problem solving by percentage of total question numbers. The method employs a cassette audio unit (1), an analog/digital converter (2), a micom (3), a liquid displaying unit (4), a recall switch (5), a main body (6), and a reset switch. The liquid displaying unit (4) displays a letter information signals by a micom (3), and a response unit decides whether a question is corrects or not.

Description

How to display Q & A subtitles in cassette player.

1 is an external configuration diagram of a conventional subtitle display cassette player.

2 is a block diagram of a subtitle display system of the cassette player of FIG.

3 is an external configuration diagram of the cassette player of the present invention.

4 is a schematic diagram of a subtitle display system of a cassette player of FIG.

5 is an external configuration diagram of another embodiment of the cassette player of the present invention.

6 is an explanatory diagram showing a recording form on a cassette tape of the present invention.

7 is an output waveform diagram of a cassette audio unit of FIG. 4;

8 is an explanatory diagram of a control byte signal recorded on a cassette tape of the present invention.

9 is a signal flow diagram illustrating the operation of FIG. 4 and FIG.

9A is a flowchart illustrating an operation signal according to the display mode of FIG. 4.

FIG. 9B is a flowchart of an operation signal when there is one response switch of FIG.

FIG. 9C is a flowchart of an operation signal when there are a plurality of response switches shown in FIG.

* Explanation of symbols for the main parts of the drawings

1: Cassette audio part 2: Analog / digital conversion part

3: micom 4: liquid crystal display

5: Recall Switch 6: Body

7: response switch

The present invention relates to a question-and-answer cassette player. In particular, the user can use a question-and-answer display cassette player that can listen to audio recorded on a tape while watching a corresponding sentence through a subtitle of a liquid crystal display for language and learning. The present invention relates to a method of displaying a question-and-answer subtitle of a cassette player to improve the ability to answer questions.

The conventional subtitle display cassette player, as shown in FIGS. 1 and 2 of the accompanying drawings, drives the cassette player to output audio signals recorded on the light track of the cassette tape through the amplifier and the speaker, and to the left. Cassette audio section 1 for signal-processing and outputting data of sentences and characters recorded in a track, and analog data signal for converting analog data signals of left tracks output from the cassette audio section 1 into digital signals. The microcomputer 3 which reads, decodes and stores the digital signal output from the analog / digital converter 2, and controls the entire system, and the control signal of the microcomputer 3; And a liquid crystal display unit 4 for driving sentences and displaying characters and characters on the screen, and in front of the main body 6 of the cassette player. A recall switch 5 connected to the microcomputer 3 to cause the microcomputer 3 to display previous data on the liquid crystal display unit 4, and mounted on the front of the main body 6 of the cassette player. It is comprised as the reset switch 7 which resets the microcomputer 3.

In the conventional subtitle display cassette player configured as described above, the cassette audio unit 1 drives the cassette player while the system is initialized by the reset switch 7 connected to the front of the main body 6 and connected to the microcomputer 3. The audio signal recorded on the light track of the tape is read from the light head, and the signal is output through the amplifier to the speaker, and the sentence and character data recorded on the left track of the cassette tape is correspondingly transferred to the left head. After reading from and outputting to the analog / digital converter 2, the analog / digital converter 2 converts the input data signal into a digital signal and inputs it to the microcomputer 3.

In this case, the data output from the analog / digital conversion unit 2 includes data of sentences and characters to be displayed on the liquid crystal display unit 4, and a control byte for displaying the data and these data. The control byte is a promised code for displaying sentences and characters on the liquid crystal display unit 4, which is composed of all four types: instantaneous display mode, display modes A, B, and C.

Therefore, the microcomputer 3 reads and stores the data output from the analog / digital converter 2 and analyzes the control byte included in the data, and if the control byte is the instant display mode, the liquid crystal display unit ( 4) control to display all the stored character data at once on the liquid crystal display unit 4, and if the control byte at the display mode (A), the liquid crystal display unit in turn with a time difference so that the stored character data can be visually confirmed. (4) sequentially display from left to right, and if the control byte is the display mode (B), the respective stored character data is displayed by sequentially moving from the upper right of the liquid crystal display (4) to the left, and the above control If the byte is the display mode (C), the microcomputer 3 stores the stored sentence data in the liquid crystal display unit. (4) is displayed by moving from the lower right to the left, and flowed to the left side, and then the characters sent to the left when the entire sentence is displayed is instantaneously displayed on the top of the liquid crystal display (4).

In addition, when the control byte analyzed above is not the instant and the display mode (A) (B) (C), the microcomputer 3 indicates that the control byte is an error in the liquid crystal display unit (4).

In this way, after displaying the character corresponding to each mode function on the liquid crystal display unit 4, when the recall input is input from the recall switch 5, the microcomputer 3 is related to the moment and the display mode (A) (B) (C). The character data displayed immediately before is displayed on the liquid crystal display unit 4, and when there is no input of the recall switch 5, the subsequent process of reading and storing the data output from the analog / digital converter 2 Will be repeated.

However, such a conventional subtitle display cassette player unilaterally displays certain data recorded on a tape on the liquid crystal display unit, and thus is unsuitable for application to many English-language teaching materials and other teaching materials.

That is, when the cassette contains a question that requires an answer such as Yes or No, or a multiple-choice answer that selects one of the answers among the polynomials, the questionnaire is not available. There was a problem in that it was not possible to express all the educational effects of the problem and to display certain data recorded on the cassette tape only on the liquid crystal display according to the four selection modes.

An object of the present invention is to record a question-and-answer voice signal on a light track of a cassette tape, and to record a text information signal and a question-and-answer control byte corresponding to the question-and-answer voice signal on a left track, and then reproduce the sound signal of the light track. Amplified and output to the speaker, and converts the left track question-type character information signal and control byte into a digital signal and displays the character information in the question-and-answer form according to the control byte mode on the liquid crystal display. And a method for creating a question-and-answer subtitle display method of a cassette player to determine an error and to display a percentage of a correct answer to the total number of problems on a liquid crystal display unit. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. .

3 is an external configuration diagram of the cassette player of the present invention, and FIG. 4 is a configuration diagram of a question-and-answer caption display system in the cassette player of FIG. 3. As shown in FIG. 3, the audio signal recorded on the light track of the cassette tape is written. The cassette audio unit 1 reads from the head and outputs through the amplifier and the speaker, and reads and outputs the character data and control bytes recorded in the left track from the left head and the cassette audio unit 1. The analog / digital converter (2) converts the analog data signal of the left track output from the digital signal into a digital signal and the digital signal output from the analog / digital converter (2). The microcomputer 3 for controlling the control and the control signal of the microcomputer 3 to display the question-and-answer type character information on the screen. The following is mounted on the front of the main body 6 of the liquid crystal display unit 4 and the cassette player and connected to the microcomputer 3 so as to cause the microcomputer 3 to display previous character information on the liquid crystal display unit 4. And a switch (5) and an answer switch (7) mounted on the front of the main body (6) of the cassette player and connected to the microcomputer (3) to display an answer to the problem on the liquid crystal display (4). .

FIG. 5 is an external configuration diagram of another embodiment of the cassette player of the present invention. As shown in FIG. 3, the answer to the multinomial selection problem is not repeatedly pressed by the response switch 7 corresponding to that of the multinomial selection type (ie, the liquid crystal display). If the answer to the problem indicated in the section (4) is three times, one response switch 7 is not pressed three times. As shown in FIG. 5, a plurality of response switches 7a, 7b, and 7c are provided on the front of the main body 6; (7d), and connected to the microcomputer (3), respectively, and the answer to the multi-choice questions selected by the corresponding response switch (7a) (7b) (7c) (7d) (4) is configured to display.

6 and 7 are explanatory diagrams showing the recording form on the cassette tape to be used in the question-and-answer cassette player in FIG. 4, as shown therein, and the right track RT of the cassette tape T1 to be tracked at the right head. ), The audio signal is recorded, and on the left track LT of the cassette tape T1 to be tracked by the left head, a start signal ST indicating the start of a sentence for each sentence, and 1 indicating a language selection function and a display selection function. Two control byte signals CB, such as one byte indicating a byte and a question-and-answer function, and a character information signal CD and an end signal ED indicating the end of a sentence are sequentially recorded, and the sentence information signal CD is recorded. In FIG. 7, the sentence information signal CD1-CD3 for each question is recorded in the case of the question and answer type. Here, the control signal indicating the question-and-answer type may be recorded immediately before the start signal ST, immediately after the end signal ED, or in the control byte signal CB as shown in FIG. On the other hand, it can be recorded in the control byte signal (CB). On the other hand, one byte representing the question-and-answer function of the control byte signal CB is composed of 8 bits. As shown in FIG. 8, the upper four bits are divided into the question and answer selection function and the last and all selection function bits of the problem, and the lower one. The 4 bits consist of answer select function bits.

The operation and effects of the present invention configured as described above will be described in detail with reference to FIGS. 3 to 9.

First, when the cassette audio unit 1 configures the cassette player to select the character information display function while the system is initialized, and reproduces the cassette tape T1 recorded as shown in FIGS. 6 and 7, The audio signal recorded on the right track RT of the cassette tape T1 is reproduced at the right head of the cassette audio section 1, and the reproduced audio signal is amplified to a predetermined level through an amplifier and output to the speaker.

At this time, the start signal ST, the control byte signal CB, the sentence information signal CD, the end signal ED, and the like recorded on the left track LT of the cassette tape T1 are stored in the cassette audio unit 1. The reproduced signal is reproduced in the left head, and the reproduced signal is converted into a digital signal by the analog / digital conversion unit 2 and input to the microcomputer 3.

Accordingly, the microcomputer 3 processes the converted digital signal as shown in the signal flow diagram of FIG. 9 and displays it on the liquid crystal display unit 4.

That is, as described above, when the analog / digital converter 2 detects the start signal ST indicating the start of a sentence from a signal converted into a digital signal and input, the microcomputer 3 indicates the end of the sentence. The output data signal of the analog / digital converter 2 is read and stored until the end signal ED is detected. If the end signal ED for one sentence is detected, the stored control byte signal CB is analyzed. In this case, the display function selection processing and the sentence function selection processing are performed as shown in FIG. 8. In this case, the data output from the analog / digital conversion unit 2 is general sentence data as described above, and the control byte signal CB is instantaneously. In the display modes A, B, and C, the sentence information signal CD is instantaneously or sequentially displayed on the liquid crystal display unit 4 in accordance with each function mode of the control byte signal CB.

In this way, when a recall input is input from the recall switch 5 in which the sentence information signal CD corresponding to each function mode is displayed on the liquid crystal display unit 4, the microcomputer 3 enters each function mode of the control byte signal CB. Regardless, the sentence information signal CD immediately displayed is displayed on the liquid crystal display unit 4, and the control byte signal CB analyzed above is a question-and-answer type, that is, the control byte as shown in FIG. If the upper four bits of the signal CB are the question-and-answer type, the microcomputer 3 displays the sentence information signal CD1 for the first problem on the liquid crystal display unit 4 as shown in FIGS. 6 and 7.

Thereafter, the microcomputer 3 checks the presence or absence of the input of the response switch 7 and answers the problem until the next sentence information signal CD2 is input within the time At which the response switch 7 requires an answer. If increased by the number corresponding to the microcomputer 3 up counts the number of times the response switch 7 is pressed to store.

For example, if the English character “I (?) A Enginer. 1. are 2. is 3.am 4. were” is displayed on the LCD display unit 4, the user must answer the response within the time required to answer. Press (7) as many times as the answer.

In the case of the above problem, if the answer is 3, the response switch 7 can be pressed three times within the time At which the answer is required.

Therefore, the microcomputer 3 counts the number of times the response switch 7 is pressed and checks whether the time required for answering has elapsed. In addition, a flag indicating that the input of the response switch 7 is finished is set to store the number of last questions.

Thereafter, the microcomputer 3 judges whether the answer included in the lower 4 bits of the control byte signal CB and the answer to the problem inputted from the response switch 7 are correct as shown in FIG. Correct (4) is displayed and the correct number of questions is stored, and if the answer entered above is incorrect (that is, the answer is not entered until the next data is entered or the time At is lost). When an answer is input after the elapse of time, the incorrect display "X" is displayed on the liquid crystal display unit 4.

Thereafter, the microcomputer 3 analyzes the control byte signal CB, and if the lower 4 bits of the control byte signal CB are not bit values indicating the end of all problems as shown in FIG. 8, the sentence information signal ( CD2) (CD3) is read, and if the bit value indicates the end of all the four bits, the score for the result of problem solving is displayed on the liquid crystal display unit 4, and then the analog / digital conversion unit 2 is again displayed. The subsequent process of reading new data is repeated.

On the other hand, if there are a plurality of response switches 7a, 7b, 7c, and 7d as shown in Figs. If there is an answer input and the 1-4 response switch 7a-7d corresponding to the problem is pressed within the time At which the answer is required, the selected 1-4 response switch 7a, 7b, 7c. (7d) is not entered within the time (At) requiring an answer, or when two or more response switches are input at the same time, after ignoring the input and checking whether the time (At) requiring an answer has elapsed as shown in Fig. 9b. The process of

As described in detail above, the present invention records a question-and-answer voice signal on a right track of a cassette tape, and a corresponding question-type sentence information signal and a question-and-answer control byte signal are recorded on a left track so that the voice signal of the right track is a speaker. And the left track question-and-answer sentence information signal is displayed on the LCD display to solve the problem interactively with the user. Therefore, the learning effect is improved, and the answer to the problem is judged as right or wrong, and the correct number of questions is corrected. By calculating and displaying the percentage of the answer, you can immediately analyze your own ability to solve problems.

Claims (3)

The cassette tape data, which is converted into a digital signal through the cassette audio unit 1 and the analog / digital conversion unit 2, is received from the microcomputer 3, stored and analyzed, and the sentence information signal is instantaneously or transmitted to the liquid crystal display unit 4. In the subtitle display method of the cassette player sequentially displayed, the microcomputer 3 displays the sentence information signal of the problem on the liquid crystal display unit 4 if the analyzed control byte signal CB is a question-and-answer type; Check the presence or absence of the input of the response switch (7), and if the answer is entered within the time (At) for which the response switch (7) requires the answer as many times as the corresponding number, the number of pressing is stored, and the answer After the time At has elapsed, the input end flag of the response switch 7 is set to determine the final number of questions, and the answer included in the control byte signal CB and the answer to the problem input from the response switch 7 are determined. Judge Oh Displaying the corresponding symbol and storing the correct number of questions, and if a control byte signal (CB) indicating the end of all characters is detected thereafter, calculating a score for the result of the problem solving and displaying the result on the liquid crystal display unit (4). Question and answer subtitle display method of the cassette player, characterized in that consisting of steps. The method according to claim 1, wherein the response switch 7 is provided corresponding to the problem, and if the response switch is pressed within the time At which a response is required, the input of the selected response switch is stored, and two or more response switches simultaneously And a subtitle display method of a cassette player, characterized in that the input is ignored when input. The method of claim 1, wherein the one-byte control byte signal (CB) has a higher four bits representing an answer type of a sentence information signal and a selection value of a problem, and a lower four bits representing an answer selection value for a problem. Answering subtitle display method of cassette player.