CN2531591Y

CN2531591Y - Interactive television remote controller with touch-control board

Info

Publication number: CN2531591Y
Application number: CN 02215631
Authority: CN
Inventors: 冉立新; 乔闪
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2002-02-04
Filing date: 2002-02-04
Publication date: 2003-01-15
Anticipated expiration: 2012-02-04

Abstract

Disclosed is an interactive television remote controller with touch-control board, comprising batteries, a touch-control board, an encoder, a sending terminal circuit composed of an infrared or radio transmitting circuit and the present used television remote controller circuit and a receiving terminal circuit composed of the infrared or radio receiving circuit and a decoder. The touch-control board is installed in present used television remote controller additionally and is widely applied to situations of notebook computers and hand writing boards, etc.; because the touch-control board can output the same signal as the standard PS/2 mouse or the serial port mouse so that the control of the interactive television can be completed through the mouse mode as long as the signal output by the touch-control board can be transmitted to the infrared or radio receiving circuit of the interactive television faultlessly, and then the PS/2 signal or the serial signal after shaping and decoding is sent to the corresponding interface of the embedded computer of the interactive television, and the usage is completely the same as the usage of the touch-control board on notebook computers.

Description

The interactive TV remote controller that has Trackpad

Technical field

The utility model relates to remote controller, particularly relates to the interactive TV remote controller that has Trackpad.

Background technology

The main flow of following household electrical appliances development is information household appliances.Information household appliances are that with the main difference of traditional home appliance information household appliances can be connected the internet.For example, the interactive TV in the information household appliances (claim interactive television again, also can realize with set-top box) just is with the main difference of common TV: common TV can only passively be accepted broadcast program.Interactive TV not only can be watched normal broadcast program, but also can not interrupt providing the instant messages service when spectators watch TV programme.As all network informations such as electronic program guides, topical news, amusements.Spectators can receive mail, inquiry various information or the like by interactive TV on one's own initiative by the man-machine interaction means from the internet.At present, this class interactive means mainly contains two classes, and a class is to use the remote controller of household electrical appliances at present, and a class is to adopt external equipments such as the mouse of computer, keyboard.Yet these two kinds of means are all improper for interactive TV: traditional remote controller can only carry out the control such as channel switching, volume are regulated by predetermined simple mode, can not carry out the control as explorer; Though and computer mouse, keyboard can carry out perfect man-machine interaction,, be not suitable for use under the leisure state because it design for desktop computer at first.

Summary of the invention

The utility model provides a kind of interactive TV remote controller that has Trackpad that Trackpad is combined with the traditional tv remote controller, for traditional remote controller has increased complete Genius mouse function, thereby can be so that the remote controller that adopts present technique except carrying out the function remote control of TV, can also carry out internet operations such as browser freely in the mode of Genius mouse by interactive TV.

The utility model comprises transmitting terminal circuit and receiving terminal circuit:

1) transmitting terminal circuit: comprise battery, Trackpad, encoder, infrared or radio transmitter, at present the TV remote controller circuit that uses; The two buttons lead-in wire of Trackpad connects the left-right key button respectively, the DATA data lead of Trackpad and CLK clock lead-in wire connect P1.7, the P1.6 mouth of encoder respectively, the TXD mouth of encoder and P1.5 mouth connect the ASK mouth of infrared or radio transmitter and the PO mouth of the present TV remote controller circuit chip that uses respectively, and the signal after will encoding by infrared or radio transmitter is launched with infrared or wireless dual mode;

2) receiving terminal circuit: comprise infrared or wireless receiving circuit, decoder; Infrared or wireless signal is entered by the ANT mouth of infrared or wireless receiving circuit, DO delivery outlet infrared or wireless receiving circuit connects the RXD mouth of decoder, and P1.5, P1.6 mouth that the TXD mouth of decoder is connected to interactive TV serial line interface or decoder are connected to interactive TV PS/2 interface.

Signal after will encoding by infrared or radio transmitter is launched with infrared or wireless dual mode, under infrared mode, adopts infrared transmitting tube, under wireless mode, adopts radio transmitter, its ANTP, ANTM delivery outlet T-Ring shape antenna.

The Trackpad of transmitting terminal circuit is the TM41P240 type, and encoder is 89C2051, and radio transmitter is monolithic ASK radio-frequency transmissions integrated circuit M1CRF102, adopts infrared transmitting tube IR333 under infrared situation, and the TV remote controller chip that uses at present is PT2262;

The wireless receiving circuit of receiving terminal circuit is monolithic superheterodyne reception integrated circuit M1CRF002, and antenna is 1/4 wavelength telescopic antenna, adopts infrared receiving tube PH302 under infrared situation, and decoder is 89C2051.

The useful effect that the utlity model has is:

Add Trackpad in the traditional tv remote controller, Trackpad is widely used in occasions such as notebook computer, handwriting pad at present.Because Trackpad can be exported PS/2 mouse or the identical signal of serial port mouse with standard, as long as so can with the signal zero defect of Trackpad output be transferred to the infrared or wireless receiving circuit of interactive TV, again shaping, decoded PS/2 or serial signal are delivered to the embedded computer corresponding interface of interactive TV, just can finish the control to interactive TV, its using method Trackpad complete and on the use notebook computer is identical.

Description of drawings

Fig. 1 is a structured flowchart of the present utility model;

Fig. 2 is transmitting terminal circuit theory diagrams of the present utility model;

Fig. 3 is a receiving terminal circuit schematic diagram of the present utility model.

Embodiment

Structure of the present utility model comprises transmitting terminal circuit and two part compositions of receiving terminal.What present embodiment provided is wireless solution.The utility model also can adopt infrared mode to carry out.

As shown in Figure 1 and Figure 2, transmitting terminal circuit: comprise battery 1, Trackpad U1, encoder U2, infrared or radio transmitter U3, at present the TV remote controller circuit 2 that uses; The two buttons lead-in wire of Trackpad U1 meets left-right key button K1, K2 respectively, the DATA data lead of Trackpad U1 and CLK clock lead-in wire connect P1.7, the P1.6 mouth of encoder U2 respectively, the TXD mouth of encoder U2 and P1.5 mouth connect the ASK mouth of infrared or radio transmitter U3 and the PO mouth of present TV remote controller circuit 2 chips 2.1 that use respectively, and the signal after will encoding by U3 is launched with infrared or wireless dual mode.

Wherein Trackpad U1 is used to produce click and the double-click information of position mobile message and left button K1, the right button K2 of finger.The data-signal and the clock signal of encoder U2 Trackpad U1 output are encoded to one road signal, are beneficial to infrared or wireless transmission.Signal after infrared or radio transmitter U3 then will encode sends to the receiving terminal of interactive TV with wireless form.

Signal after will encoding by U3 is launched with infrared or wireless dual mode, and under infrared mode, U3 adopts infrared transmitting tube, and under wireless mode, U3 adopts radio transmitter, its ANTP, ANTM delivery outlet T-Ring shape antenna 3.

As Fig. 1, shown in Figure 3, receiving terminal circuit: comprise infrared or wireless receiving circuit U4, decoder U5; Infrared or wireless signal is entered by the ANT mouth of infrared or wireless receiving circuit U4, DO delivery outlet infrared or wireless receiving circuit U4 connects the RXD mouth of decoder U5, and P1.5, P1.6 mouth that the TXD mouth of decoder U5 is connected to interactive TV serial line interface or decoder U5 are connected to interactive TV PS/2 interface.

Function wherein infrared or wireless receiving circuit U4 is that the small-signal that antenna or infrared sensor receive is carried out filtering, amplification, demodulation, and output is through the digital signal of shaping.Corresponding method that decoder U5 adopts and transmitting terminal is encoded is reproduced the signal of Trackpad output again, is RS232 signal or PS/2 signal with conversion of signals, will change good signal at last and send into corresponding interactive TV embedded computer interface.

Fig. 2 is the realization circuit of the technical program transmitting terminal, and wherein Trackpad U1 adopts the TM41P240 type.The left and right lead-in wire of Trackpad connects two respectively and often opens button K1, K2, is used separately as left button button and right button button.When finger moves on Trackpad or clicks left button K1 or right button K2, the data lead DATA of Trackpad U1 and clock lead-in wire CLK will produce corresponding mouse signal.Encoder U2 adopts single-chip microcomputer 89C2051 to realize, with P1.7 and the P1.6 mouth that the DATA and the CLK signal of Trackpad are received single-chip microcomputer, adopts software mode to encode.Coded system can have multiple choices, as Manchester code etc.Be RS232 serial form signal with Trackpad U1 signal encoding in this realization, and the TXD mouth output by 89C2051.What this realization was used is wireless mode, and it has direction-free advantage than infrared mode.Radio transmitter adopts monolithic ASK radio-frequency transmissions integrated circuit MICRF102 (if adopt infrared mode, then MICRF102 can be changed into infrared transmitting tube IR333), its ASK pin fetches the signal of own coding circuit, and ANTP and ANTM pin connect the printed board loop aerial.The connection of other lead-in wire of MICRF102 and the data of loop aerial are asked for an interview the chip handbook.Like this, when finger moves on Trackpad U1 or clicks left button or right button, represent the Genius mouse signal of these actions just to launch from antenna.Domestic electrical equipment remote controller 2 adopts PT2262 chip 2.1 to realize, it is general remote controller coding chip, its coding output PO is linked into the P1.5 mouth of 89C2051, with the Trackpad signal and the PT2262 code signal is sent into infrared or radio transmitter U3, the connection of PT2262 and remote controller keyboard 2.2 can be referring to the chip explanation document of PT2262 by 89C2051.

Fig. 3 is the realization circuit of the technical program receiving terminal.Wherein antenna adopts 1/4 wavelength telescopic antenna, adopts infrared receiving tube PH302, wireless receiving circuit U4 to adopt monolithic superheterodyne reception integrated circuit MICRF002 under infrared situation U4, and wherein antenna is received the ANT pin of this chip.The DO pin is the output pin of this chip.MICRF002 amplifies inside to the received signal, superhet demodulation, signal shaping, and therefore the signal of output has been a baseband digital signal.Other pin connection of MICRF002 sees also this chip handbook.Decoder U5 also realizes that with 89C2051 wherein the DO pin is connected to the RXD mouth of 89C2051 in this realization.If what interactive TV used is serial line interface, then single-chip microcomputer is converted into the RS232 form with signal and exports from TXD; If what interactive TV used is the PS/2 interface, then single-chip microcomputer is converted into the PS/2 form with signal, and clock and data wire from P1.6 and P1.5 output, are received respectively on interactive TV embedded computer PS/2 mouth DATA and the CLK mouth line respectively.

Claims

1. have the interactive TV remote controller of Trackpad, it is characterized in that:

1) transmitting terminal circuit: comprise battery [1] Trackpad [U1], encoder [U2], infrared or radio transmitter [U3], at present the TV remote controller circuit [2] that uses; The two buttons lead-in wire of Trackpad [U1] meets left-right key button [K1], [K2] respectively, the DATA data lead of Trackpad [U1] and CLK clock lead-in wire connect P1.7, the P1.6 mouth of encoder [U2] respectively, the TXD mouth of encoder [U2] and P1.5 mouth connect the ASK mouth of infrared or radio transmitter [U3] and the PO mouth of present TV remote controller circuit [2] chip [2.1] that uses respectively, and the signal after will encoding by [U3] is launched with infrared or wireless dual mode;

2) receiving terminal circuit: comprise infrared or wireless receiving circuit [U4], decoder [U5]; Infrared or wireless signal is entered by the ANT mouth of infrared or wireless receiving circuit [U4], DO delivery outlet infrared or wireless receiving circuit [U4] connects the RXD mouth of decoder [U5], and P1.5, P1.6 mouth that the TXD mouth of decoder [U5] is connected to interactive TV serial line interface or decoder [U5] are connected to interactive TV PS/2 interface.

2. the interactive TV remote controller that has Trackpad according to claim 1, it is characterized in that: the signal after will encoding by U3 is launched with infrared or wireless dual mode, under infrared mode, [U3] adopts infrared transmitting tube, under wireless mode, [U3] adopts radio transmitter, its ANTP, ANTM delivery outlet T-Ring shape antenna [3].

3. the interactive TV remote controller that has Trackpad according to claim 1 and 2 is characterized in that:

1) Trackpad of transmitting terminal circuit [U1] is the TM41P240 type, encoder [U2] is 89C2051, radio transmitter [U3] is monolithic ASK radio-frequency transmissions integrated circuit M1CRF102, [U3] adopts infrared transmitting tube IR333 under infrared situation, and TV remote controller [2] chip [2.1] that uses at present is PT2262;

2) wireless receiving circuit of receiving terminal circuit [U4] is monolithic superheterodyne reception integrated circuit M1CRF002, and antenna is 1/4 wavelength telescopic antenna, and [U4] adopts infrared receiving tube PH302 under infrared situation, and decoder [U5] is 89C2051.