Cordless multimedia system and image display system

• US 9,161,093 B2
• Filed: 06/29/2006
• Issued: 10/13/2015
• Est. Priority Date: 06/30/2005
• Status: Active Grant

• Current Assignee: Realtek Semiconductor Corp.
• Original Assignee: Realtek Semiconductor Corp.
• Inventors: Huang, Jia-Bin, Yeng, Cheng-Pang
• Primary Examiner(s): Dubasky, Gigi L
• Application Number:
  US11/427,344
• Publication Number:
  US 20070006269A1
• Time in Patent Office: 3,393 Days
• Field of Search: 725/81, 725/100, 725/120, 725/131, 725/151, 725/139
• US Class Current: 1/1
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 21/6181 involving transmission via a mobile phone network arrangements for providing broadcast or conference services to substation in data switching networks in combination with wireless systems H04L12/189; wireless uplink channel access H04W74/004
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

A multimedia system includes a data source for providing a multimedia data; a wireless transmitting module, coupled to the data source, comprising a wireless transmitter for transmitting the multimedia data; a wireless receiving module comprising a wireless receiver for receiving the multimedia data from the wireless transmitter; and a reproducing device, coupled to the wireless receiving module, for reproducing the multimedia data received by the wireless receiver.

Claims

1. A multimedia system comprising:

a data source for providing a multimedia data;

a wireless transmitting module, coupled to the data source, comprising a wireless transmitter for transmitting the multimedia data, a detector, and an analog-to digital converter,

the analog-to-digital converter being utilized for converting the multimedia data from an analog format to a digital format,

the detector being configured to determine a sampling rate of the analog-to-digital converter according to a vertical synchronization signal or a horizontal synchronization signal;

a packet former configured to generate packets according to the sampling rate determined by the detector and the multimedia data;

a wireless receiving module comprising a wireless receiver for receiving the multimedia data from the wireless transmitter; and

a reproducing device, coupled to the wireless receiving module, for reproducing the multimedia data received by the wireless receiver.

2. The system of claim 1, wherein the multimedia data comprises at least one of image data and audio data.

3. The system of claim 1, wherein the wireless transmitting module comprises:

a compressing engine for compressing the multimedia data from the data source.

4. The system of claim 3, wherein the compressing engine utilizes lossless entropy coding to compress the multimedia data.

5. The system of claim 1, wherein the detector is a display mode detector and the wireless receiving module receives the packets and performs data synchronization according to information within the packets.

6. The system of claim 1, wherein the packet former is coupled between the wireless transmitter and the data source and is configured to generate packets complying with an ultra wideband (UWB) transmission standard according to the multimedia data.

7. The system of claim 6, wherein the detector is a display mode detector for generating information according to at least one of the vertical synchronization signal and the horizontal synchronization signal;

and

the packet former further records the information in the packets, so that the wireless receiving module performs data synchronization accordingly.

8. The system of claim 7, wherein the multimedia data transmitted by the wireless transmitter comprises at least one of a refresh rate and a resolution of an image data of the multimedia data.

9. The system of claim 8, wherein the receiving module comprises:

a packet parser coupled between the wireless receiver and the reproducing device for extracting the at least one of the refresh rate and the resolution from the packets transmitted by the wireless transmitter.

10. The system of claim 6, wherein the receiving module comprises:

a packet parser coupled between the wireless receiver and the reproducing device for extracting the multimedia data from the packets transmitted by the wireless transmitter.

11. The system of claim 1, wherein the data source has an interface coupled to the wireless transmitting module, wherein the interface is one of a D-sub analog interface, a Digital Visual Interface (DVI), and a High-Definition Multimedia Interface (HDMI).

12. The system of claim 1, wherein the wireless transmitter comprises an ultra wideband (UWB) PHY circuit.

13. The system of claim 1, wherein the transmitted multimedia data comprises an information corresponding to the multimedia data and the wireless receiving module comprises a digital-to-analog converter (DAC) for sampling the transmitted multimedia data according to the information of the multimedia data.

14. The system of claim 13, wherein the information comprises at least one of a refresh-rate and a resolution of an image data of the multimedia data.

15. The system of claim 1, wherein the data source is a computer and the reproducing device is a monitor.

16. The system of claim 1, wherein the data source is an optical storage reproducing device and the reproducing device is a television.

17. A method for playing an multimedia data, the method comprising:

generating a multimedia data by using a data source;

deciding a sampling rate of an analog-to-digital converter according to a vertical synchronization signal or a horizontal synchronization signal;

using the analog-to-digital converter to convert the multimedia data from an analog format to a digital format;

transmitting the multimedia data according to an ultra wideband (UWB) protocol;

receiving the transmitted multimedia data in accordance with the UWB protocol; and

playing the received multimedia data.

18. The method of claim 17, further comprising:

compressing the multimedia data from the data source according to lossless entropy coding.

19. The method of claim 17, wherein the transmitted multimedia data comprises an information corresponding to the multimedia data, and the method further comprises:

sampling the transmitted multimedia data according to the information of the multimedia data to generate the received multimedia data.

20. A multimedia system comprising:

a wireless transmitting module coupled to a data source and configured to transmit multimedia data, the wireless transmitting module comprising;

an analog-to digital converter configured to convert the multimedia data from an analog format to a digital format;

a detector configured to determine information comprising;

a sampling rate of the analog-to-digital converter, a refresh rate, and a picture resolution of the multimedia data; and

a packet former configured to generate packets according to the multimedia data and the information determined by the detector;

a wireless receiving module comprising a wireless receiver for receiving the packets from the wireless transmitter; and

a reproducing device, coupled to the wireless receiving module, for reproducing multimedia data according to the information and multimedia data in the received packets.