Personal computer based on wireless human-machine interactive device and method of transmitting data thereof

• US 20050015528A1
• Filed: 08/06/2004
• Published: 01/20/2005
• Est. Priority Date: 02/09/2002
• Status: Abandoned Application

• Current Assignee: Legend Ltd.
• Original Assignee: Legend Ltd.
• Inventors: Du, Dayu
• Application Number:
  US10/914,021
• Publication Number:
  US 20050015528A1
• Time in Patent Office: Days
• US Class Current: 710/68
• CPC Class Codes: G10L 19/00 Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis in musical instruments G10H

Abstract

Method for transmitting data in a personal computer based on wireless human-machine interactive device, comprising at least following steps: inputting event information by user via an external device connected to the wireless human-machine interactive device and; capturing the information stream by host system and stimulating burst the event received from input of user; converting and compressing the image and voice data of the burst event by host system, and transmitting to interactive device in manner of wireless; the wireless interactive device reverts the data stream and outputs to display and voice device. The host system is separated from display device and external device, the transmission manner is wireless and the transmission is security and credibility. The burden of network is low and architecture is flexible. The strong function of software and hardware of computer host can be fully used for providing mobile official business and wireless entertainment to users. The radio of performance and price is high and easy to extend for new application of wireless multimedia.

Claims

1. A personal computer (PC) based-on wireless human-machine interactive device, at least comprises:

a host computer, a display, and peripherals of the host computer, wherein, a wireless human-machine interactive device is set between the host computer and the peripherals as well as the display;

wherein,

the host computer connects with a data capture and compression device and a duplex wireless communication device through buses;

the data capture and compression device obtains data to be transmitted to the wireless human-machine interactive device from the host computer, converts format and compresses the data; and

then the duplex wireless communication device transmits the compressed data to the wireless human-machine interactive device in wireless mode;

the wireless human-machine interactive device connects with the display and the peripherals of the host computer;

the wireless human-machine interactive device includes a CPU, a memory, a display output device, a sound output device, the duplex wireless communication device, a data receiving and decompression device and also bus extended ports and interfaces of the peripherals of the host computer;

wherein, the duplex wireless communication device communicates with the host computer;

the data receiving and decompression device receives data transferred from the duplex wireless communication device, decompresses and restores the received data, and transfers to the display output device and sound output device to display image and play music;

an event message inputted from the peripheral connected to the wireless human-machine interactive device being transmitted to the host computer in wireless communication mode, and then the host computer simulates and triggers the input event.

2. The PC based on wireless human-machine interactive device according to claim 1, wherein:

the data capture and compression device includes a screen image data backup module, a data dynamic comparison module, a data capture module and a data compression module;

the screen image data backup module stores last frame of mapping of a screen buffer in real time;

the data dynamic comparison module obtains current frame of mapping of the screen buffer in real time, and compares the current frame of mapping of the screen buffer with last frame stored in the screen image data backup module;

the data capture module captures compared dynamic data in certain field and sends the data to the data compression module;

the data compression module compresses the data and transfers the compressed data to the duplex wireless communication device;

in the wireless human-machine interactive device, the data receiving and decompression device includes two modules;

a data decompression module, which decompresses the compressed data transferred from the host computer, and an image-padding module, which pads the dynamic data on appropriate areas of an image.

3. The PC based on wireless human-machine interactive device according to claim 2, wherein:

the data compression used in the data compression module is lossless compression and/or lossy compression.

4. The PC based on wireless human-machine interactive device according to claim 1, wherein:

the data capture and compression device of the host computer includes a data capture module and a data compression in real time module;

the data capture module is used to obtain a mapping of a screen buffer in real time, and the data compression in real time module makes data compression and format conversion in order to transmit efficiently;

the data receiving and decompression module in the wireless human-machine interactive device is data de-compression in real time module which restores data format and decompresses received data.

5. The PC based on wireless human-machine interactive device according to claim 4, wherein:

the data compression in real time module deploys MPGE standards to convert a compressed PS data stream to a TS data stream that is suitable for transmission.

6. The PC based on wireless human-machine interactive device according to claim 1, wherein:

the data capture and compression device includes two channels, and there is a switch device in front of the data capture and compression device;

one channel includes a screen image data backup module, a data dynamic comparison module, a data capture module and a data compression module;

the screen image data backup module stores last frame of mapping of said screen buffer in real time;

the data dynamic comparison module obtains current frame of mapping of the screen buffer in real time and compares the current the frame of mapping of the screen buffer with the last frame stored in the screen image data backup module;

the data capture module captures compared dynamic data in certain field and sends the dynamic data to the data compression module;

the data compression module compresses the dynamic data and transfers the dynamic data to the duplex wireless communication device;

another channel includes a data capture module and a data compression in real time module;

the data capture module is used to obtain a mapping of the screen buffer in real time, and the data compression in real time module makes data compression and format conversion in order to transmit efficiently;

correspondingly, the data receiving and decompression device in wireless human-machine interactive device also includes two channels;

one channel includes a data decompression module, which decompresses the compressed data from the host computer, and an image-padding module, which pads the dynamic data on appropriate areas of an image;

another channel includes a data decompression in real time module that restores received data to its original format and decompresses received data.

7. The PC based on wireless human-machine interactive device according to claim 6, wherein:

the switch device is a manual switch device or an automatic switch device.

8. The PC based on wireless human-machine interactive device according to claim 7, wherein:

the manual switch device is a switch, a special key or a special command.

9. The PC based on wireless human-machine interactive device according to claim 7, wherein:

the automatic switch device is an adaptive electronic switch according to event triggered by user input message.

10. The PC based on wireless human-machine interactive device according to claim 1, wherein:

the duplex wireless communication device is a wireless network card that at least includes an interface unit, a data coding/decoding unit, a radio modulation/demodulation unit and a radio transmitter/receiver unit.

11. The PC based on wireless human-machine interactive device according to claim 1, wherein:

the wireless human-machine interactive device is independent equipment or combined with a display.

12. The PC based on wireless human-machine interactive device according to claim 11, wherein:

the wireless human-machine interactive device includes a camera and a IP visible-telephone software module inside.

13. The PC based on wireless human-machine interactive device according to claims 1, wherein:

the wireless human-machine interactive device is more than one.

14. The PC based on wireless human-machine interactive device according to claim 1, wherein:

the peripheral of the host computer is a keyboard, a mouse, a touch screen, a handwriting device or a voice input device.

15. The PC based on wireless human-machine interactive device according to claims 1, wherein:

the connection between the wireless human-machine interactive device and the peripheral is a wire mode or a wireless mode.

16. A method of transmitting data for a PC based on wireless human-machine interactive device, wherein, the PC based on wireless human-machine interactive device is as described above, the method comprising:

(1) inputting a user input event message through peripherals connected with wireless human-machine interactive device;

(2) transferring the user input event message from the wireless human-machine interactive device to the host computer in wireless mode;

(3) capturing the user input event message, simulating and triggering the received user input event in the user input event message by the host computer;

(4) converting format of image and sound data streams triggered by the user input event and compressing the image and sound data streams by the host computer, and then transmitting the image and sound data streams to the wireless human-machine interactive device in wireless mode;

(5) restoring the image and sound data streams and sending the image and sound data streams to a display and sound output device by the wireless human-machine interactive device.

17. The method according to claim 16, wherein the wireless communication between the host computer and the wireless human-machine interactive device deploys TCP/UDP/IP or other protocols based on IP.

18. The method according to claim 16, wherein the user input event is captured and coded in an event message manner by the wireless human-machine interactive device, and then transmitted in a wireless mode.

19. The method according to claim 16, wherein the converting format of image and sound data streams and compressing the image and sound data streams includes:

comparing continuously mapping data of a screen buffer, obtaining sound and image data of dynamic changing field;

then converting format of the sound and image data, synthesizing and compressing the sound and image data;

correspondingly, after receiving the data, de-converting, de-synthesizing and decompressing the data by the wireless human-machine interactive device, and then displaying and padding the data on appropriate parts of a screen.

20. The method according to claim 19, wherein the compressing the data streams is lossless compressing.

21. The method according to claim 16, wherein the converting format of image and sound data streams and compressing the image and sound data streams includes:

obtaining mapping data of a screen buffer, then compressing the data in real time and converting the data to a format that is suitable for transmission; and

after receiving the data, de-converting and decompressing the data by the wireless human-machine interactive device.

22. The method according to claim 21, wherein the compressing is MPGE lossy compressing.

23. The method according to claim 16, before the converting format of image and sound data streams and compressing the image and sound data stream, further including:

a switching step for selecting different data format conversion and compression according to different data streams, one of the selecting steps is to compare continuously mapping data of a screen buffer to obtain image and audio data of image in dynamic changing areas, and then convert format and synthesize and compress the data;

the other of the selecting steps is to obtain mapping data of a screen buffer, and then compress the data in real time and convert to a format that is suitable for transmission;

corresponding to different format conversion and data compression, wireless human-machine interactive device has different either to receive, de-synthesize and decompress the data and puts displaying data and padded data on appropriate parts of a display, or receive the data and then convert and decompress.

24. The method according to claim 23, wherein the switching step including:

making determination based on a host computer state and data volume to be transferred;

if the data volume is small, a lossless compression method which is only to transfer changed data in real time is deployed; and

if data volume is large, a lossy compression method which is only to transfer full screen data in real time is deployed, such to realize the adaptation switch.

25. The method according to claims 23, wherein the switching is a manual switch controlled by switch or key, or an automatic switch which judges according to the setting.

26. The method according to claim 16, wherein, when the wireless human-machine interactive device is more than one, the method further including:

controlling data interaction among the more than one wireless human-machine interactive devices with time-division or frequency-division control.