CN104301698A - Optical cable interface system for transmitting HDMI signals - Google Patents

Optical cable interface system for transmitting HDMI signals Download PDF

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Publication number
CN104301698A
CN104301698A CN201410572696.5A CN201410572696A CN104301698A CN 104301698 A CN104301698 A CN 104301698A CN 201410572696 A CN201410572696 A CN 201410572696A CN 104301698 A CN104301698 A CN 104301698A
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CN
China
Prior art keywords
signal
described
optical cable
telecommunication
hdmi
Prior art date
Application number
CN201410572696.5A
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Chinese (zh)
Inventor
黄嘉宏
李振东
Original Assignee
深圳市易飞扬通信技术有限公司
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Application filed by 深圳市易飞扬通信技术有限公司 filed Critical 深圳市易飞扬通信技术有限公司
Priority to CN201410572696.5A priority Critical patent/CN104301698A/en
Publication of CN104301698A publication Critical patent/CN104301698A/en

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Abstract

An optical cable interface system for transmitting HDMI signals receives the electric HDMI signals through a signal source end, the electric HDMI signals are firstly converted into optical signals through an electro-optic conversion module, the optical signals are then coupled to an optical cable to be transmitted to an optic-electro module, the optic-electro module converts the received optical signals into electric signals, and then the electric signals are transmitted to a signal receiving end. Thus, the electric HDMI signals are transmitted in an optical signal mode, and the attenuation appearing when a cable is adopted for transmitting signals is avoided; furthermore, the optical cable is used for transmitting the converted electric HDMI signals, the limitation of the transmission distance can be avoided, and thus the transmission distance is enlarged.

Description

For transmitting the optical cable interface system of HDMI signal

Technical field

The present invention relates to optical cable interface system, particularly relating to a kind of little, that transmission range is long optical cable interface system for transmitting HDMI signal of decaying.

Background technology

Common HDMI (high definition multimedia interface, HDMI (High Definition Multimedia Interface)) cable adopt cable as transmission line, two end band HDMI standard electrical interface, by electrical interface one end access source, as the player such as DVD, television set top box, other end access display, as domestic TV, screen test etc.The cable transmission of digital high-definition signal connected by centre.But this decay by cable transmission of digital high-definition signal is large, and cannot carry out long range propagation.

Summary of the invention

Based on this, be necessary to provide a kind of little, that transmission range is long optical cable interface system for transmitting HDMI signal of decaying.

For transmitting an optical cable interface system for HDMI signal, comprise signal source, electrooptic conversion module, photoelectric conversion module and signal receiving end;

The signal of reception for receiving the HDMI signal of telecommunication, and is sent to described electrooptic conversion module by described signal source; Described electrooptic conversion module is used for converting the HDMI signal of telecommunication of reception to light signal, and is transferred to described photoelectric conversion module by optical signal to optical cable; Described photoelectric conversion module sends to described signal receiving end after being used for converting the light signal of reception to the signal of telecommunication, and described signal receiving end is used for the signal of telecommunication of reception to be sent to display.

Wherein in an embodiment, also comprise Laser Driven module, the HDMI signal of telecommunication that described Laser Driven module is used for described signal source exports carries out driving modulation treatment, and the signal of telecommunication after process is exported to described electrooptic conversion module.

Wherein in an embodiment, described Laser Driven module comprises laser driver.

Wherein in an embodiment, also comprise amplification module, after the signal of telecommunication that described amplification module is used for described photoelectric conversion module to export amplifies, send to described signal receiving end.

Wherein in an embodiment, described amplification module comprises limiting amplifier.

Wherein in an embodiment, described electrooptic conversion module comprises vertical cavity surface emitting laser arrays.

Wherein in an embodiment, described photoelectric conversion module comprises photoconductor matrix.

Wherein in an embodiment, described signal source comprises HDMI signal source.

Wherein in an embodiment, described signal receiving end comprises HDMI signal receiving end.

The above-mentioned optical cable interface system for transmitting HDMI signal receives the HDMI signal of telecommunication by signal source termination, then first the HDMI signal of telecommunication is converted to light signal by electrooptic conversion module, photoelectric conversion module is transferred to again by optical signal to optical cable, photoelectric conversion module converts the light signal of reception to the signal of telecommunication, then is transferred to signal receiving end.Therefore, the HDMI signal of telecommunication transmits with the form of light signal, avoids the decay adopting cable transmission signal to occur, and adopt the HDMI signal of telecommunication after optical cable transmission conversion, can not, by the restriction of transmission range, transmission range be increased.

Accompanying drawing explanation

Fig. 1 is the module map of the optical cable interface system for transmitting HDMI signal;

Fig. 2 is the schematic diagram of the optical cable interface system for transmitting HDMI signal.

Embodiment

As shown in Figure 1, be the module map of the optical cable interface system for transmitting HDMI signal.

For transmitting an optical cable interface system for HDMI signal, comprise signal source 101, electrooptic conversion module 103, photoelectric conversion module 104 and signal receiving end 106.

The signal of reception for receiving the HDMI signal of telecommunication, and is sent to described electrooptic conversion module 103 by described signal source 101; Described electrooptic conversion module 103 for converting the HDMI signal of telecommunication of reception to light signal, and optical signal to optical cable will be transferred to described photoelectric conversion module 104; Described photoelectric conversion module 104 sends to described signal receiving end 106 after converting the light signal of reception to the signal of telecommunication, and described signal receiving end 106 is for being sent to display by the signal of telecommunication of reception.

Optical cable interface system for transmitting HDMI signal also comprises Laser Driven module 102, described Laser Driven module 102 carries out driving modulation treatment for the HDMI signal of telecommunication exported described signal source, and the signal of telecommunication after process is exported to described electrooptic conversion module 103.

Laser Driven module 102 comprises laser driver.

Optical cable interface system for transmitting HDMI signal also comprises amplification module 105, and described amplification module 105 sends to described signal receiving end 106 after amplifying for the signal of telecommunication exported by described photoelectric conversion module 104.

Amplification module 105 comprises limiting amplifier.

Signal source 101 for receiving the HDMI signal of telecommunication, then by receive HDMI electric signal transmission to Laser Driven module 102.

Laser Driven module 102 is for carrying out driving modulation to the HDMI signal of telecommunication received.

Electrooptic conversion module 103 is for converting the electrical signal to light signal, concrete, is to convert the HDMI signal of telecommunication to light signal.Therefore, the HDMI signal of telecommunication can pass through optical cable transmission with the form of light signal.

Photoelectric conversion module 104 is for converting light signal to the signal of telecommunication.Concrete, convert the light signal of optical cable transmission to the HDMI signal of telecommunication.Therefore, the form of the signal of telecommunication can be reverted to by the HDMI signal of telecommunication of optical cable transmission with light signal form.

Amplification module 105, for the signal of telecommunication of reception being carried out amplification process, is avoided the signal of telecommunication too faint and can not be identified.

The electric signal transmission of reception for receiving the signal of telecommunication after amplifying via amplification module 105, and shows to display by signal receiving end 106.

Electrooptic conversion module 103 comprises vertical cavity surface emitting laser arrays.

Photoelectric conversion module 104 comprises photoconductor matrix.

Signal source 101 comprises HDMI signal source.

Signal receiving end 106 comprises HDMI signal receiving end.

Based on above-mentioned all embodiments, the operation principle for the optical cable interface system transmitting HDMI signal is as follows:

The HDMI signal of telecommunication that HDMI signal source termination is received carries out the driving modulation of the signal of telecommunication by laser driver.Then the HDMI signal of telecommunication is converted to light signal by vertical cavity surface emitting laser arrays.Vertical cavity surface emitting laser arrays is connected with photoconductor matrix by optical cable.Therefore, optical signal to optical cable carries out one-way transmission.Light signal to after photoconductor matrix, converts light signal to the signal of telecommunication by photoconductor matrix via optical cable transmission, then is transferred to HDMI signal receiving end after being amplified by the signal of telecommunication by limiting amplifier.Therefore, it is possible to send to display to show the HDMI signal of telecommunication.

In above process, the HDMI signal of telecommunication by optical cable transmission, therefore, avoids the problem of signal attenuation adopting cable transmission to occur with the form of light signal.Meanwhile, HDMI signal is converted to light signal and adopt optical cable transmission can overcome the problem of transmission range, make the long range propagation of the HDMI signal of telecommunication become possibility.General, adopt the distance of the light signal form transmission HDMI signal of telecommunication more than 30m.

The above-mentioned optical cable interface system for transmitting HDMI signal receives the HDMI signal of telecommunication by signal source 101, then first the HDMI signal of telecommunication is converted to light signal by electrooptic conversion module 103, photoelectric conversion module 104 is transferred to again by optical signal to optical cable, photoelectric conversion module 104 converts the light signal of reception to the signal of telecommunication, then is transferred to signal receiving end 106.Therefore, the HDMI signal of telecommunication transmits with the form of light signal, avoids the decay adopting cable transmission signal to occur, and adopt the HDMI signal of telecommunication after optical cable transmission conversion, can not, by the restriction of transmission range, transmission range be increased.

The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.

Claims (9)

1. for transmitting an optical cable interface system for HDMI signal, it is characterized in that, comprising signal source, electrooptic conversion module, photoelectric conversion module and signal receiving end;
The signal of reception for receiving the HDMI signal of telecommunication, and is sent to described electrooptic conversion module by described signal source; Described electrooptic conversion module is used for converting the HDMI signal of telecommunication of reception to light signal, and is transferred to described photoelectric conversion module by optical signal to optical cable; Described photoelectric conversion module sends to described signal receiving end after being used for converting the light signal of reception to the signal of telecommunication, and described signal receiving end is used for the signal of telecommunication of reception to be sent to display.
2. the optical cable interface system for transmitting HDMI signal according to claim 1, it is characterized in that, also comprise Laser Driven module, the HDMI signal of telecommunication that described Laser Driven module is used for described signal source exports carries out driving modulation treatment, and the signal of telecommunication after process is exported to described electrooptic conversion module.
3. the optical cable interface system for transmitting HDMI signal according to claim 2, is characterized in that, described Laser Driven module comprises laser driver.
4. the optical cable interface system for transmitting HDMI signal according to claim 1, is characterized in that, also comprise amplification module, sends to described signal receiving end after the signal of telecommunication that described amplification module is used for described photoelectric conversion module to export amplifies.
5. the optical cable interface system for transmitting HDMI signal according to claim 4, it is characterized in that, described amplification module comprises limiting amplifier.
6. the optical cable interface system for transmitting HDMI signal according to claim 1, it is characterized in that, described electrooptic conversion module comprises vertical cavity surface emitting laser arrays.
7. the optical cable interface system for transmitting HDMI signal according to claim 1, it is characterized in that, described photoelectric conversion module comprises photoconductor matrix.
8. the optical cable interface system for transmitting HDMI signal according to claim 1, is characterized in that, described signal source comprises HDMI signal source.
9. the optical cable interface system for transmitting HDMI signal according to claim 1, it is characterized in that, described signal receiving end comprises HDMI signal receiving end.
CN201410572696.5A 2014-10-23 2014-10-23 Optical cable interface system for transmitting HDMI signals CN104301698A (en)

Priority Applications (1)

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CN105933683A (en) * 2016-05-03 2016-09-07 王东 Novel video and audio transmission method satisfying long-distance transmission
CN106130645A (en) * 2016-07-01 2016-11-16 武汉博昇光电股份有限公司 A kind of ultra high-definition distance HDMI optical cable
CN106782261A (en) * 2016-12-07 2017-05-31 努比亚技术有限公司 A kind of liquid crystal display device and its drive signal transmission method, mobile terminal
CN107493447A (en) * 2017-09-28 2017-12-19 武汉博昇光电股份有限公司 A kind of split type HDMI devices

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105933683A (en) * 2016-05-03 2016-09-07 王东 Novel video and audio transmission method satisfying long-distance transmission
CN106130645A (en) * 2016-07-01 2016-11-16 武汉博昇光电股份有限公司 A kind of ultra high-definition distance HDMI optical cable
CN106782261A (en) * 2016-12-07 2017-05-31 努比亚技术有限公司 A kind of liquid crystal display device and its drive signal transmission method, mobile terminal
CN107493447A (en) * 2017-09-28 2017-12-19 武汉博昇光电股份有限公司 A kind of split type HDMI devices

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