WO2004006564A1

WO2004006564A1 - A remote controller of interactive tv with a touch control plate

Info

Publication number: WO2004006564A1
Application number: PCT/CN2002/000474
Authority: WO
Inventors: Lixin Ran
Original assignee: Lixin Ran
Priority date: 2002-07-05
Filing date: 2002-07-05
Publication date: 2004-01-15
Also published as: AU2002368085A1

Abstract

A remote controller of interactive TV with a touch control plate comprises a transmitting terminal circuit including the battery, the touch control plate, the encoder, the infrared ray or wireless transmitting circuit and currently using TV remote controller circuit; a receiving terminal circuit including the infrared ray of wireless receiving circuit and the decoder. The invention adds the touch control plate to the currently using TV remote controller circuit, currently the touch control plate widely used in the case of the notebook computer or the handwriting input board. Because the touch control plate can output the signal same as that of the standard PS/2 mouse of serial interface mouse, only if the signal output from the touch control plate can be transmitted to the infrared ray or wireless transmitting circuit of the interactive TV without error, and then the shaped and decoded PS/2 or serial signal was sent to interface corresponding to the embedded computer of the interactive TV, then the control to the interactive TV can be accomplished in the manner of mouse, the using way of the controller was same as the touch control plate used in the notebook computer.

Description

Interactive TV remote control with touchpad TECHNICAL FIELD

The utility model relates to a remote controller, in particular to an interactive television remote controller with a touch panel. Background technique

The mainstream of future home appliance development is information appliances. The main difference between information appliances and traditional appliances is that information appliances can connect to the Internet. For example, the main difference between interactive TV in information appliances (also known as interactive TV, which can also be implemented with a box) and ordinary TV is that ordinary TV can only passively accept radio programs. Interactive TV can not only watch normal radio programs, but also provide instant information services without interrupting viewers' watching TV programs. All network information such as electronic program guides, current affairs news, entertainment, etc. Viewers can actively receive mail from the Internet through interactive television through human-computer interaction, query various types of information, and so on. At present, there are mainly two types of such interaction methods, one is a remote controller currently using home appliances, and the other is a computer mouse, keyboard, and other external devices. However, these two methods are not suitable for interactive TV: traditional remote controls can only perform controls such as channel switching and volume adjustment in a predetermined simple mode, and cannot perform controls such as Internet browsers; Although the keyboard can perform perfect human-computer interaction, it is not suitable for casual use because it was originally designed for desktop computers. Summary of the Invention

The utility model provides an interactive TV remote control with a touch panel, which combines a touch panel with a traditional TV remote control, and adds a complete mouse function to the traditional remote control, so that the remote control adopting the technology can be used in addition to You can remotely control the functions of the TV. You can also use the interactive TV to perform Internet operations such as a browser with a mouse.

The utility model includes a transmitting end circuit and a receiving end circuit:

1) Transmitting circuit: including battery, touchpad, encoder, infrared or wireless transmitting circuit, currently used TV remote control circuit; the two key leads of the touchpad are connected to the left and right buttons respectively, and the DATA data of the touchpad The lead and CLK clock lead are respectively connected to P1, 7, P1. 6 of the encoder, the TXD and P1. 5 of the encoder are respectively connected to the ASK port of the infrared or wireless transmitting circuit and P0 of the TV remote control circuit chip currently used. Port, which transmits the encoded signal in infrared or wireless through an infrared or wireless transmitting circuit;

2) Receiving circuit: including infrared or wireless receiving circuit and decoder; infrared or wireless signal is confirmed by red The ANT port of the external or wireless receiving circuit enters, the DO output port of the infrared or wireless receiving circuit is connected to the RXD port of the decoder, and the TXD port of the decoder is connected to the P1. 5, PI. 6 port of the interactive TV serial interface or decoder. Connect to interactive TV PS / 2 connector.

The encoded signal is transmitted in infrared or wireless mode through infrared or wireless transmitting circuit. In infrared mode, an infrared transmitting tube is used. In wireless mode, a wireless transmitting circuit is used, and its ANTP and ANTM output ports are connected to a ring. antenna.

The touchpad of the transmitting circuit is TM41P240, the encoder is 89C2051, the wireless transmitting circuit is a single ASK radio frequency transmitting integrated circuit M1CRF102, in the infrared case, the infrared transmitting tube IR333 is used, and the currently used TV remote control chip is PT2262;

The wireless receiving circuit of the receiving end circuit is a monolithic superheterodyne receiving integrated circuit M1CRF002, the antenna is a 1 / 4-wavelength whip antenna, in the infrared case, the infrared receiving PH302 is used, and the decoder is 89C2051.

The beneficial effects of the utility model are:

A touchpad is added to a traditional TV remote control. The touchpad is currently widely used in laptops, tablet PCs and other occasions. Since the touchpad can output the same signal as a standard PS / 2 mouse or serial port mouse, as long as the signal output from the touchpad can be transmitted to the infrared or wireless receiving circuit of the interactive TV without error, the shaping, The decoded PS / 2 or serial signal is sent to the corresponding interface of the embedded TV of the interactive TV to complete the control of the interactive TV. The use method is completely the same as using the touchpad on a notebook computer. BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural block diagram of the present invention;

2 is a schematic diagram of a transmitting end circuit of the present invention;

FIG. 3 is a schematic diagram of a receiving end circuit of the present invention. detailed description

The structure of the utility model comprises two parts of a transmitting end circuit and a receiving end. This embodiment provides a wireless scheme. The utility model can also be implemented by an infrared method.

As shown in Figures 1 and 2, the transmitting-end circuit includes a battery 1, a touchpad Ul, an encoder U2, an infrared or wireless transmitting circuit U3, and a television remote control circuit 2 currently used; two key leads of the touchpad U1 Connect left and right buttons K1 and KK2 respectively, DATA data lead and CLK clock lead of touchpad Ul are connected to P1, 7, PL 6 of encoder U2, TXD and PI of encoder U2, and 5 are connected to infrared Or wireless transmission The USK ASK port and the currently used TV remote control circuit 2 chip 2.1 P0 port are transmitted through the U3 and other encoded signals in infrared or wireless modes.

The touchpad U1 is used to generate finger position movement information, left-click KI, right-click KK2, and double-click information. The data signal and clock signal output by the encoder U2 touchpad U1 are encoded into one signal to facilitate infrared or wireless transmission. The infrared or wireless transmitting circuit U3 sends the encoded signal wirelessly to the receiving end of the interactive TV.

The encoded signal is transmitted through infrared or wireless through U3, in infrared mode. U3 uses an infrared transmitting tube. In the wireless mode, U3 uses a wireless transmitting circuit, and its ANTP and ANMT output ports are connected to the loop antenna 3.

As shown in Figures 1 and 3, the receiving circuit: includes infrared or wireless receiving circuit U4 and decoder U5; infrared or wireless signals enter through the ANT port of infrared or wireless receiving circuit U4, and DO output of infrared or wireless receiving circuit U4 The port is connected to the RXD port of the decoder U5, and the TXD port of the decoder U5 is connected to the serial interface of the interactive TV or the P1, 5. and PI. 6 ports of the decoder U5 are connected to the PS / 2 interface of the interactive TV.

Among them, the function of infrared or wireless receiving circuit U4 is to filter, amplify, demodulate the weak signal received by the antenna or infrared sensor, and output the shaped digital signal. The decoder U5 uses the method corresponding to the encoding of the transmitting end to reproduce the signal output by the touchpad, converts the signal into an RS232 signal or a PS / 2 signal, and finally sends the converted signal to the corresponding interactive TV embedded computer interface. .

Figure 2 is the implementation circuit of the transmitting end of the technical solution, wherein the touch panel U1 adopts TM41P240 type. The left and right leads of the touchpad are respectively connected to two normally open buttons Π and KK2, which are respectively used as left button and right button. When the finger moves on the touchpad or clicks left button K1 or right button K2, the data lead DATA and clock lead CLK of touchpad U1 will generate corresponding mouse signals. The encoder U2 is realized by a single-chip microcomputer 89C2051. The DATA and CLK signals of the touchpad are connected to the PL 7 and PI. 6 ports of the single-chip microcomputer, and the software is used for encoding. There are many options for encoding, such as Manchester code. In this implementation, the touchpad U1 signal is encoded into an RS232 serial format signal and output through the TXD port of the 89C2051. This implementation uses the wireless method, which has the advantage of non-directionality than the infrared method. The wireless transmitting circuit uses a single-chip ASK radio frequency transmitting integrated circuit MICRF102 (if the infrared method is used, the MICRF102 can be changed to an infrared transmitting tube IR333), its ASK pin is connected to the signal from the encoding circuit, and A TP and ANTM pins are printed Plate loop antenna. Please refer to the chip manual for the connection of other leads of MICRF102 and the data of loop antenna. In this way, when the finger moves on the touchpad U1 or clicks the left or right button, the mouse signal representing these actions is transmitted from the antenna. The remote controller for home appliances is implemented with PT2262 chip 2.1. It is a universal remote control encoding chip. Its encoding output terminal P0 is connected to the P1.5 port of 89C2051. The 89C2051 sends the touchpad signal and the PT2262 encoded signal to it. For the connection of the infrared or wireless transmitting circuit U3, PT2262 and the remote control keyboard 2.2, refer to the chip description file of PT2262.

Figure 3 shows the implementation circuit of the receiving end of the technical solution. Among them, the antenna uses a 1 / 4-wavelength rod antenna, in the case of infrared U4, an infrared receiving tube PH302, and the wireless receiving circuit U4 uses a single-chip superheterodyne receiving integrated circuit MICRF002, where the antenna is connected to the chip's ANT pin. DO pin is the output pin of this chip. MICRF002 internally amplifies the received signal, superheterodyne demodulation, and signal shaping, so the output signal is already a baseband digital signal. Please refer to the chip manual for other pins of MICRF002. In this implementation, the decoder U5 is also implemented with 89C2051, where the DO pin is connected to the RXD port of 89C2051. If the interactive TV uses a serial interface, the microcontroller converts the signal to RS232 format and outputs it from TXD. If the interactive TV uses a PS / 2 interface, the microcontroller converts the signal to PS I 2 format. The clock and data lines are respectively Outputs from P1. 6 and P1. 5 are respectively connected to the PS / 2 port DATA and CLK ports of the interactive TV embedded computer.

Claims

Rights request

1. An interactive TV remote control with a touchpad, characterized by-

1) Transmitting circuit: including battery [ι], touch pad [m], encoder [U2], infrared or wireless transmitting circuit [U3], currently used TV remote control circuit [2]: touch pad [1] The two key leads of] are respectively connected to the left and right buttons [Kl], [Κ2], the DATA data lead of the touchpad [U1] and the CLK clock lead are respectively connected to P1, 7. and PL 6 ports of the encoder [U2]. The TXD port and PI. 5 port of the device [U2] are respectively connected to the ASK port of the infrared or wireless transmitting circuit [U3] and the P0 port of the chip [2] 1 [2] of the TV remote control circuit currently used, through [U3] Transmit the encoded signal in infrared or wireless mode;

2) Receiving end circuit: Including infrared or wireless receiving circuit [U4], decoder [U5] _; infrared or wireless signal is entered by ANT port of infrared or wireless receiving circuit [U4], DO of infrared or wireless receiving circuit [U4] The output port is connected to the RXD port of the decoder [U5], and the TXD port of the decoder [U5] is connected to the serial interface of the interactive TV or P1. 5, PI. 6 of the decoder [U5] is connected to the PS / 2 interface of the interactive TV .

The remote control for an interactive television with a touch panel according to claim 1, characterized in that: the encoded signal is transmitted through infrared or wireless through U3, and in the infrared mode, [U3] uses In the infrared transmitting tube, [U3] uses a wireless transmitting circuit in a wireless mode, and its ANTP and ANTM output ports are connected to a loop antenna [3].

The remote control for an interactive television with a touch panel according to claim 1 or 2, wherein:

1) The touchpad [U1] of the transmitting circuit is TM41P240, the encoder [U2] is 89C2051, and the wireless transmitting circuit [U3] is a single-chip ASK radio frequency transmitting integrated circuit M1CRF102. In the infrared case, [U3] uses infrared transmission. Tube IR333, the TV remote control [2] chip [2. 1] currently used is PT2262;

2) The wireless receiving circuit [4] of the receiving end circuit is a monolithic superheterodyne receiving integrated circuit M1CRF002, and the antenna is a 1 I wavelength rod antenna. In the infrared case, [U4] uses an infrared receiving tube PH302 and a decoder [U5 ] Is 89C2051.