WO2007041906A1

WO2007041906A1 - A method for controlling the home appliance digital audio-video recorder and the equipment thereof

Info

Publication number: WO2007041906A1
Application number: PCT/CN2005/002426
Authority: WO
Inventors: Jinan Yao; Zhihai Zhang
Original assignee: I-Tone Limited
Priority date: 2005-10-08
Filing date: 2005-12-31
Publication date: 2007-04-19
Also published as: CN1946119A

Abstract

A method for controlling remotely the home appliance digital audio-video recorder through the phone, micro process unit controls the phone interface to switch on the phone and transmits the phonetic prompt, DTMF decode unit receives the phone signal and decodes, it generates the controlling signal, state detect interface unit detects the state of the home appliance digital audio-video recorder, transmits the controlling signal to the home appliance digital audio-video recorder, when it detects the free state, voice data memory unit transmits the phonetic set success message. Through controlling remotely the home appliance digital audio-video recorder and feedbacks the control message process, it realizes the real-time record, the timing record and so on when the operator is far away from the device, and it can realize according to the temporary variety idea and the thought of the user.

Description

Method and device for remotely controlling home digital audio and video recording device by telephone

Technical field

The present invention relates to a remote control technology for digital audio and video recording telephones, and more particularly to a method and apparatus for remotely controlling a home digital audio and video recording device. Background technique

Home digital audio and video recording equipment is a common audio-visual equipment, such as a DVD player/recorder. Usually its functions are: playing back images and sound information as a signal source; pre-selecting TV channels and delivering television broadcast information to the TV; recording and storing from video terminals , S-terminal, audio terminal and TV broadcast network image, sound information for playback.

Take a DVD player/recorder as an example. In normal operation, connect the DVD player/recorder to the TV, you can control it nearby by remote control, or directly through the control buttons on the DVD player/recorder panel, but when using Functions such as instant recording or timed recording, and when the operator is away from the device, it is difficult to implement the operation, or it cannot be implemented according to the idea and requirements of the user's temporary change. Summary of the invention

SUMMARY OF THE INVENTION The present invention is a method for remotely controlling a home digital audio and video recording device by a telephone and an apparatus thereof for performing instant recording or timed recording by telephone when the operator is away from the home digital audio and video recording device.

The present invention achieves the above objects by the following steps, and the specific contents are as follows:

(1) Turn on the phone and start working;

(2) Send a voice prompt to inform the user to perform a button operation;

(3) receiving the DTMF signal input by the button and decoding, if not completed, returning to the second step, resending the voice prompt to inform the user;

(4) After completing the decoding of the DTMF signal, generate a control command;

(5) detecting whether the motherboard of the digital audio and video recording device is in an idle state, and if the motherboard is in a non-idle state, returning to the second step to send a voice prompt to inform the user that the host is in a non-idle state; (6) When the motherboard is idle, set the motherboard according to the control command generated in step (4);

If the setting conflicts, clear the last setting, return the resend control command;

If the setting is unsuccessful, send a voice prompt to inform the user that the setting is unsuccessful and return to step (2) to prompt for re-entry;

If the setting is successful, send a voice prompt to inform the user that the setting is successful;

(7) End the work.

Means for implementing the above method for remotely controlling a home digital audio and video recording device by a telephone, comprising: a telephone interface unit for accessing a public telephone network, a DTMF decoding unit for decoding information transmitted by the telephone interface unit and transmitting the information to the microprocessor unit, a voice data storage unit that stores voice data information, a digital-to-analog conversion unit that converts voice data information into a voice analog signal, a voice amplification unit that amplifies the voice signal and transmits to the telephone interface unit, and data that transmits data to the home digital audio-video recording device a transmitting interface unit, a state detecting interface unit for detecting an operating state of the home digital audio and video recording device, and a microprocessor unit for processing the unit information, wherein the telephone interface unit is connected to the DTMF decoding unit, and the DTMF decoding unit is connected to the microprocessor unit, The processor unit is connected to the telephone interface unit, the digital-to-analog conversion unit, the data transmission interface unit, the voice data storage unit, the state detection interface unit, and the voice amplification unit is connected to the digital-to-analog conversion unit and the telephone interface unit;

In the above structure, the telephone interface unit is composed of an audio transformer and its peripheral circuits, a polarity switching circuit, an analog off-hook circuit, a ringing detection circuit, and an off-hook control circuit;

In the above structure, the microprocessor unit is composed of a central processing chip and a peripheral crystal oscillator circuit, a reset circuit, and a power supply filter circuit.

In summary, by applying the remote control method and device thereof, the telephone interface unit accesses the public telephone network through a telephone line to receive an instruction sent by the remote telephone, and the DTMF decoding unit decodes the information sent by the telephone interface unit and sends the information to the micro processing. The microprocessor unit controls the telephone interface unit to connect to the remote telephone, receives the digital information sent by the DTMF decoding unit to form a control command for the motherboard of the digital audio and video recording device, and detects the home digital audio and video recording through the state detection interface unit. The working state of the device; reading the voice data to the voice data storage unit, writing or reading the voice data to the voice data storage unit, transmitting the voice data to the digital to analog conversion unit, and the voice amplifying unit amplifying the voice signal and sending it to the telephone interface unit. Realized through the far end The feedback of the telephone to the control and control information of the home digital audio and video recording device enables functions such as instant recording or timed recording and is realized when the operator is away from the device, and can be implemented according to the idea and requirements of the user's temporary change. DRAWINGS

The details of the present invention are described in detail below with reference to the accompanying drawings

1 is a flow chart of a method for remotely controlling a home digital audio and video recording device according to the present invention. FIG. 2 is a block diagram of a device for remotely controlling a home digital audio and video recording device according to the present invention.

FIG. 3 is a circuit diagram of an apparatus for remotely controlling a home digital audio and video recording apparatus of the present invention.

As shown in FIG. 1, the flow of the present invention is as follows: The remote telephone dials the telephone number corresponding to the telephone line connected to the digital audio and video recording device, connects the telephone, sends a voice prompt to inform the user to perform a key operation, and receives the DTMF of the key input. The signal is encoded and decoded. If not, the process returns to the second step to resend the voice prompt to inform the user. After the decoding is completed, a control command is generated to detect whether the home digital audio and video recording device is in an idle state, if the home digital audio and video recording device is in a non- In the idle state, return to the second step to send a voice prompt to inform the user that the host is in a non-idle state. When the home digital audio and video recording device is idle, use the generated control command to set the home digital audio and video recording device. If the setting conflicts, clear the current setting. If the setting is unsuccessful, send a voice prompt "Setting is unsuccessful, please re-enter" to inform the user that the setting is unsuccessful and return to the prompt to re-enter. After the setting is successful, send a voice prompt "Setup is successful, please hang up" to inform the user that the setting is successful. Beam work.

As shown in Figure 2, the inner portion of the dashed box is a functional block diagram of the apparatus of the present invention. The telephone interface unit 100 accesses the public telephone network via a telephone line to receive an instruction sent by the remote telephone. The DTMF decoding unit 500 decodes the information transmitted by the telephone interface unit 100 and transmits it to the microprocessor unit 400, and the microprocessor unit 400 controls the telephone interface. The unit 100 turns on the remote phone, receives the digital information sent by the DTMF decoding unit 500 to form a control command for the motherboard of the digital audio and video recording device, and detects the working state of the home digital audio and video recording device through the state detecting interface unit 700; The storage unit 800 writes or reads voice data to the digital to analog conversion unit 300. The voice data is transmitted, and the voice amplifying unit 200 amplifies the voice signal and sends it to the telephone interface unit. As shown in FIG. 3, the telephone interface unit 100 is composed of an audio transformer TR2 and its peripheral circuits, a polarity switching circuit BR2, and an analog off-hook circuit including Q5, Q6, D10, DI K R43, R44,

R50, R22, EC6, the ringing detection circuit includes IS02, D7, C23, C22, R45, R46, and the off-hook control circuit includes YR2, Q4, R42, R49, R51, C24;

The speech amplifying unit 200 is composed of operational amplifiers U3A, U3B, R19, R20, R21, and R22;

The digital-to-analog conversion unit 300 is composed of R1, R2, R4~R17 resistor networks;

The microprocessor unit 400 is composed of a central processing chip U1 and peripheral crystal oscillator circuits XT1, C4,

C5, reset circuit Dl, R3 C3, power supply filter circuit Cl, C2;

The DTMF decoding unit 500 is composed of U6 and its peripheral crystal oscillator circuits XT3, C18, C19, input comparison circuits C17, R39, R40, peripheral devices C20, C21, R41;

The data transmission interface unit 600 is composed of an I/O port P3.6 of the processor U1;

The state detecting interface unit 700 is composed of I/O ports P1.7, P1.8 of the processor U1; the voice data storage unit 800 is composed of a memory U2 and its peripheral device C6.

In the above structure, the chip U1 adopts S3F9498, the U2 adopts 25F040, and the U6 adopts 9170.

Claims

Claim

A method for remotely controlling a home digital audio and video recording device by a telephone, characterized in that: it comprises the following steps:

(1) Turn on the phone and start working;

(2) Send a voice prompt to inform the user to perform a button operation;

(5) detecting whether the motherboard of the digital audio and video recording device is in an idle state, if the host board is in a non-idle state, returning to the second step to send a voice prompt to inform the user that the host is in a non-idle state;

(6) When the motherboard is idle, set the motherboard according to the control command generated in step (4);

(7) End the work.

2. Apparatus for remotely controlling a home digital audio and video recording device according to claim 1, characterized in that it comprises means for accessing a telephone interface unit of the public telephone network, decoding information transmitted by the telephone interface unit and transmitting a DTMF decoding unit to the microprocessor unit, a voice data storage unit that stores voice data information, a digital-to-analog conversion unit that converts voice data information into a voice analog signal, a voice amplification unit that amplifies the voice signal and transmits it to the telephone interface unit, a data transmission interface unit for transmitting data of a home digital audio and video recording device motherboard, a state detection interface unit for detecting an operation state of a motherboard of a home digital audio and video recording device, and a microprocessor unit for processing the unit information, wherein the telephone interface unit and the DTMF The decoding unit is connected, the DTMF decoding unit is connected to the microprocessor unit, and the microprocessor unit is connected to the telephone interface unit, the digital to analog conversion unit, the data transmission interface unit, and the voice data storage. The storage unit, the state detecting interface unit, and the voice amplifying unit are connected to the digital to analog converting unit and the telephone interface unit.

3. The apparatus for remotely controlling a home digital audio and video recording device according to claim 2, wherein: the telephone interface unit comprises an audio transformer and its peripheral circuit, a polarity switching circuit, an analog off-hook circuit, and a ringing detection circuit. , off-hook control circuit configuration.

4. The apparatus for remotely controlling a home digital audio and video recording device according to claim 2, wherein: the microprocessor unit is composed of a central processing chip and a peripheral crystal oscillator circuit, a reset circuit, and a power supply filter circuit.