CN104936008A - Signal forwarding device, signal forwarding system and method thereof - Google Patents

Signal forwarding device, signal forwarding system and method thereof Download PDF

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Publication number
CN104936008A
CN104936008A CN201410100670.0A CN201410100670A CN104936008A CN 104936008 A CN104936008 A CN 104936008A CN 201410100670 A CN201410100670 A CN 201410100670A CN 104936008 A CN104936008 A CN 104936008A
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CN
China
Prior art keywords
described
signal
wi
fi
hdmi
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CN201410100670.0A
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Chinese (zh)
Inventor
卞小云
Original Assignee
深圳富泰宏精密工业有限公司
群迈通讯股份有限公司
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Priority to CN201410100670.0A priority Critical patent/CN104936008A/en
Publication of CN104936008A publication Critical patent/CN104936008A/en

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Abstract

A signal forwarding device comprises an HDMI signal receiving chip, a Wi-Fi assembly, a microprocessor and a storage unit; wherein the HDMI signal receiving chip is connected with a high-definition set-top box through an HDMI wire and is used for receiving an HDMI signal which is output from the high-definition set-top box and restores the HDMI signal to a digital audio signal and a digital image signal. The Wi-Fi assembly comprises a Wi-Fi RF chip and a Wi-Fi antenna and is used for receiving and transmitting a Wi-Fi signal. The microprocessor is used for recoding the HDMI signal and transmitting the recoded signal to an electronic device through the Wi-Fi assembly. The storage unit is used for storing data which are calculated in the microprocessor and processing result of the HDMI signal. The invention further provides a signal forwarding system and a method thereof. By means of the signal forwarding device, the signal forwarding system and the method, a television signal can be forwarded to the Wi-Fi electronic device.

Description

Signal retransmission unit, system and method

Technical field

The present invention relates to a kind of signal retransmission unit, system and method.

Background technology

Along with the raising of people's living standard, television set has become one of requisite household electrical appliance in people's daily life.Almost each kinsfolk TV programme of having oneself to like, child likes to see animation, and father likes ball match, and mother dotes on South Korean TV soaps etc.; And seeing that the custom of TV is all different separately, someone likes being seated and sees, someone likes recumbency to see, someone likes seeing in parlor, and someone likes feeding edge limit to see.But one family all only has a television set usually, therefore, how to meet people to the difference of TV programme hobby and see TV time difference custom become a problem demanding prompt solution.

Summary of the invention

In view of above content, be necessary to provide a kind of signal retransmission unit, system and method, TV signal forwarded by Wi-Fi, user is only needed can real-time TV reception by Wi-Fi devices such as mobile phone or flat boards.

A kind of signal retransmission unit, this device comprises HDMI signal receiving chip, Wi-Fi assembly, microprocessor and memory cell, wherein: described HDMI signal receiving chip is connected with high definition set top box by HDMI wire, for receiving the HDMI signal that high definition set top box exports, described HDMI signals revivification is become digital audio and video signals and data image signal; Described Wi-Fi assembly comprises Wi-Fi radio frequency chip and Wi-Fi antenna, for receiving and sending Wi-Fi signal; Described microprocessor is used for described HDMI signal to carry out recompile, and by Wi-Fi assembly, the signal after coding is sent to electronic installation; Described memory cell is for storing the data information of computing in described microprocessor, and the result to described HDMI signal transacting.

A kind of signal repeater system, run in signal retransmission unit, this system comprises: link block, for when receiving the Wi-Fi connection request that electronic installation sends, calls Wi-Fi assembly, creates Wi-Fi and connects, described electronic installation in connection; Receiver module, for calling HDMI signal receiving chip, receiving the HDMI signal that high definition set top box exports, and described HDMI signals revivification is become digital audio and video signals and data image signal; Coding module, for utilizing microprocessor, carries out recompile by described data image signal and described digital audio and video signals; Sending module, for being connected by Wi-Fi, is sent to the signal after described recompile in described electronic installation.

A kind of TV signal retransmission method, the method comprises: when signal retransmission unit receives the Wi-Fi connection request that electronic installation sends, create Wi-Fi and connect, described electronic installation in connection; Described signal retransmission unit receives the HDMI signal that high definition set top box exports, and described HDMI signals revivification is become digital audio and video signals and data image signal; Described data image signal and described digital audio and video signals are carried out recompile by described signal retransmission unit; Described signal retransmission unit is connected by Wi-Fi, and the signal after described recompile is sent to described electronic installation.

Compared to known technology, signal retransmission unit of the present invention, system and method make user only synchronously need can watch high-definition television program by the Wi-Fi such as mobile phone, flat board electronic installation, meet the demand that different user watches different TV programme, improve the experience effect of user.

Accompanying drawing explanation

Fig. 1 is the applied environment schematic diagram of signal retransmission unit of the present invention preferred embodiment.

Fig. 2 is the hardware structure figure of signal repeater system of the present invention preferred embodiment.

Fig. 3 is the flow chart of signal retransmission method of the present invention preferred embodiment.

Fig. 4 is the follow-up processing flow figure of signal retransmission method of the present invention preferred embodiment.

Main element symbol description

Electronic installation 1

Signal retransmission unit 2

High definition set top box 3

Signal repeater system 10

HDMI signal receiving chip 11

Wi-Fi assembly 12

Microprocessor 13

Memory cell 14

Link block 101

Receiver module 102

Coding module 103

Sending module 104

Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.

Embodiment

Consulting shown in Fig. 1, is the applied environment schematic diagram of signal retransmission unit of the present invention preferred embodiment.Described signal retransmission unit 2 is independently electronic equipments, between the high definition set top box 3 being applied to electronic installation 1 and television set, this device is integrated with Wi-Fi function, conform to Wi-FiDirect standard, can realize with the interconnection of point-to-point form by Wi-Fi and described electronic installation 1, share and transmit data etc.Described signal retransmission unit 2 and described electronic installation are provided with same operating system, such as android system or IOS system etc., with avoid occurring when setting up Wi-Fi and connecting compatible in problem.

Described electronic installation 1 is the Wi-Fi electronic equipment such as a kind of mobile phone or panel computer, for receiving the data-signal that described signal retransmission unit 2 is transmitted by Wi-Fi.In the present embodiment, when described electronic installation 1 is by Wi-Fi connection during described signal retransmission unit 2, described signal retransmission unit 2 receives the HDMI signal (High DefinitionMultimedia Interface: digitized video/audio interface technology) that described high definition set top box 3 exports, and after the process such as reduction, coding, connected by Wi-Fi and be transmitted to described electronic installation 1, after described electronic installation 1 waits process by decoding, by described HDMI signal with the form of video, play back in the display screen of described electronic installation 1.Thus reach the feature utilizing described high definition set top box 3 to receive the stability of HDMI signal and the high-speed transfer of Wi-Fi Direct, realize the object of watching HDTV (High-Definition Television) programme televised live glibly.

Consulting shown in Fig. 2, is the hardware structure figure of signal repeater system of the present invention preferred embodiment.In the present embodiment, described signal repeater system 10 is installed and is run in described signal retransmission unit 2, and this device also include but not limited to, HDMI signal receiving chip 11, Wi-Fi assembly 12, microprocessor 13 and memory cell 14.

Described HDMI signal receiving chip 11 is connected with described high definition set top box 3 by HDMI wire, for receiving the HDMI signal that described high definition set top box 3 exports, and described HDMI signals revivification is become digital audio and video signals and data image signal, be sent to microprocessor 13.

Described Wi-Fi assembly 12 is made up of Wi-Fi radio frequency chip and Wi-Fi antenna.Described Wi-Fi radio frequency chip comprises the parts such as wireless transceiver, transmit/receive switch, power amplifier and low noise amplifier, can directly carry out electrical communications with described Wi-Fi antenna, receives and sends Wi-Fi radiofrequency signal.Send Wi-Fi signal time, first low power faint Wi-Fi radiofrequency signal is sent to power amplifier and carries out power amplification by the wireless transceiver of described Wi-Fi radio frequency chip, then by transmit/receive switch via described Wi-Fi aerial radiation to space.When receiving Wi-Fi signal, Wi-Fi signal in the space sensed is sent to low noise amplifier by the transmit/receive switch of described Wi-Fi radio frequency chip and amplifies by described Wi-Fi antenna, and then the Wi-Fi signal after amplifying is sent to wireless transceiver and carries out demodulation.

Described memory cell 14 is made up of embedded memory and internal memory.Described embedded memory can be the storage facilitiess such as smart media card (Smart Media Card), safe digital card (Secure DigitalCard), flash memory cards (Flash Card), for storing the program code and data information etc. of described signal repeater system 10; Described internal memory is a kind of internal memory (as LPDDR3 internal memory) of high standard, for the data etc. of computing in the temporary data that exchange with described embedded memory and microprocessor 13.

Described signal repeater system 10 comprises link block 101, receiver module 102, coding module 103 and sending module 104.Module alleged by the present invention can, for the hardware chip be made up of multiple electronic devices and components, also can be the computer program code segments be made up of series of computation instruction.In the present embodiment, described module be a kind of can be performed and the computer program code segments of fixed function can be completed by described microprocessor 13, it is stored in the embedded memory of memory cell 14.Detailed functions about described module 101-104 is described specifically in the flow chart of Fig. 3 later.

Consulting shown in Fig. 3, is the flow chart of signal retransmission method of the present invention preferred embodiment.

Step S21, when receiving the Wi-Fi connection request that electronic installation 1 sends, link block 101 calls Wi-Fi assembly 12, creates Wi-Fi and connects, described electronic installation 1 in connection.

When receiving described connection request, described link block 101 is set up TCP and is connected (Transmission Control Protocol: transmission control protocol) between signal retransmission unit 2 with described electronic installation 1, and create one control port initiate and maintain sessions (Session), described control port conforms to RTSP agreement (Real Time Streaming Protocol: real time streaming transport protocol).Meanwhile, described link block 101 is according to RTSP agreement, and the optimum value of parameter required when the decoding rate, resolution, channel load rate etc. of setting audio and video carry out Wi-Fi transfer of data in subsequent step, completes described Wi-Fi and connect.

Step S22, when described Wi-Fi has connected, receiver module 102 calls the HDMI signal that HDMI signal receiving chip 11 receives high definition set top box 3 output, and reduces according to the transmission standard of HDMI, and described HDMI signals revivification is become digital audio and video signals and data image signal.

Step S23, coding module 103 utilizes microprocessor 13, described data image signal is carried out recompile by H.264 standard, described digital audio and video signals is carried out recompile by AAC standard.

Described H.264 standard and new digital video coding standard, its compression ratio is high, is conducive to transmitting high-definition video signal fast, avoids user in TV reception process, occurs the phenomenons such as card pauses.Described AAC(Advanced Audio Coding) standard and Advanced Audio Coding technology, tonequality, compared with good and file is little, is conducive to transmitting high-quality audio signal fast.

Step S24, sending module 104 utilizes Wi-Fi P2P technology, is connected by Wi-Fi, the digital picture after recompile and audio signal is sent in described electronic installation 1.

By above-mentioned steps S21 to step S24, the present invention utilizes Wi-Fi to connect, and the HDMI signal exported by high definition set top box, by compression coding, has successfully been forwarded in electronic installation.The subsequent treatment of the HDMI signal of described forwarding is described in detail in the flow chart of Fig. 4 later.

Consulting shown in Fig. 4, is the follow-up processing flow figure of signal retransmission method of the present invention preferred embodiment.The follow-up processing flow of described signal retransmission method is carried out in the electronic apparatus 1, by following step S25 to step S27, the HDMI signal forwarded by signal retransmission unit 2 plays back in described electronic installation 1, achieve the target of watching high-definition television program in real time, improve the experience effect of user.

Step S25, described electronic installation 1 is searched for the Wi-Fi existed around and is connected account, sends Wi-Fi connection request, described signal retransmission unit 2 in connection to described signal retransmission unit 2.

Step S26, described electronic installation 1 receives the HDMI signal that described signal retransmission unit 2 sends, and by the data image signal that H.264 standard is decoded in described HDMI signal, to decode the digital audio and video signals in described HDMI signal by AAC standard.

Step S27, decoded data image signal and digital audio and video signals by the form of video, play back by described electronic installation 1 on a display screen.

Finally it should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to above preferred embodiment to invention has been detailed description, those of ordinary skill in the art should be appreciated that and can modify to technical scheme of the present invention or be equal to the spirit and scope of replacing and should not depart from technical solution of the present invention.

Claims (12)

1. a signal retransmission unit, is characterized in that, this device comprises HDMI signal receiving chip, Wi-Fi assembly, microprocessor and memory cell, wherein:
Described HDMI signal receiving chip is connected with high definition set top box by HDMI wire, for receiving the HDMI signal that high definition set top box exports, described HDMI signals revivification is become digital audio and video signals and data image signal;
Described Wi-Fi assembly comprises Wi-Fi radio frequency chip and Wi-Fi antenna, for receiving and sending Wi-Fi signal;
Described microprocessor is used for described HDMI signal to carry out recompile, and by Wi-Fi assembly, the signal after coding is sent to electronic installation;
Described memory cell is for storing the data information of computing in described microprocessor, and the result to described HDMI signal transacting.
2. signal retransmission unit as claimed in claim 1, is characterized in that, described Wi-Fi assembly described signal retransmission unit with set up TCP between described electronic installation and be connected, and create a control port and initiate and maintain sessions.
3. signal retransmission unit as claimed in claim 1, is characterized in that, described data image signal is pressed H.264 standard recompile by described microprocessor, described digital audio and video signals is pressed AAC standard recompile.
4. signal retransmission unit as claimed in claim 1, it is characterized in that, described HDMI signal is forwarded in described electronic installation and carries out following process:
Described electronic installation receives described HDMI signal, and to decode data image signal in described HDMI signal and digital audio and video signals by H.264 standard and AAC standard respectively;
Decoded signal with the form of video, plays back by described electronic installation on a display screen.
5. use a signal repeater system for signal retransmission unit described in claim 1, it is characterized in that, this system comprises:
Link block, for when receiving the Wi-Fi connection request that electronic installation sends, calls Wi-Fi assembly, creates Wi-Fi and connects, described electronic installation in connection;
Receiver module, for calling HDMI signal receiving chip, receiving the HDMI signal that high definition set top box exports, and described HDMI signals revivification is become digital audio and video signals and data image signal;
Coding module, for utilizing microprocessor, carries out recompile by described data image signal and described digital audio and video signals;
Sending module, for being connected by Wi-Fi, is sent to the signal after described recompile in described electronic installation.
6. signal repeater system as claimed in claim 5, is characterized in that, described link block described signal retransmission unit with set up TCP between described electronic installation and be connected, and create a control port and initiate and maintain sessions.
7. signal repeater system as claimed in claim 5, is characterized in that, described data image signal is pressed H.264 standard recompile by described coding module, described digital audio and video signals is pressed AAC standard recompile.
8. signal repeater system as claimed in claim 5, it is characterized in that, described HDMI signal is forwarded in described electronic installation and carries out following process:
Described electronic installation receives described HDMI signal, and to decode data image signal in described HDMI signal and digital audio and video signals by H.264 standard and AAC standard respectively;
Decoded signal with the form of video, plays back by described electronic installation on a display screen.
9. use a signal retransmission method for signal retransmission unit described in claim 1, it is characterized in that, the method comprises:
Connection Step, when signal retransmission unit receives the Wi-Fi connection request that electronic installation sends, creates Wi-Fi and connects, described electronic installation in connection;
Receiving step, described signal retransmission unit receives the HDMI signal that high definition set top box exports, and described HDMI signals revivification is become digital audio and video signals and data image signal;
Coding step, described data image signal and described digital audio and video signals are carried out recompile by described signal retransmission unit;
Forwarding step, described signal retransmission unit is connected by Wi-Fi, and the signal after described recompile is sent to described electronic installation.
10. signal retransmission method as claimed in claim 9, is characterized in that, in described Connection Step, be described signal retransmission unit with set up TCP between described electronic installation and be connected, and create a control port and initiate and maintain sessions.
11. signal retransmission methods as claimed in claim 9, is characterized in that, in described coding step, be by described data image signal by H.264 standard recompile, described digital audio and video signals is pressed AAC standard recompile.
12. signal retransmission methods as claimed in claim 9, it is characterized in that, described HDMI signal is forwarded in described electronic installation and carries out following process:
Described electronic installation receives described HDMI signal, and to decode data image signal in described HDMI signal and digital audio and video signals by H.264 standard and AAC standard respectively;
Decoded signal with the form of video, plays back by described electronic installation on a display screen.
CN201410100670.0A 2014-03-18 2014-03-18 Signal forwarding device, signal forwarding system and method thereof CN104936008A (en)

Priority Applications (1)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100201877A1 (en) * 2009-02-10 2010-08-12 Samsung Electronics Co., Ltd. Apparatus and method for providing digital multimedia broadcast service using an external device and a digital tv
CN203120081U (en) * 2013-01-15 2013-08-07 深圳市同洲电子股份有限公司 Video service device based on open Internet and Internet television set
CN103347209A (en) * 2013-07-01 2013-10-09 郑义 Wireless video forwarding device system based on WIFI and method for achieving forwarding of wireless video forwarding device system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100201877A1 (en) * 2009-02-10 2010-08-12 Samsung Electronics Co., Ltd. Apparatus and method for providing digital multimedia broadcast service using an external device and a digital tv
CN203120081U (en) * 2013-01-15 2013-08-07 深圳市同洲电子股份有限公司 Video service device based on open Internet and Internet television set
CN103347209A (en) * 2013-07-01 2013-10-09 郑义 Wireless video forwarding device system based on WIFI and method for achieving forwarding of wireless video forwarding device system

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