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QED Signature HDMI

PKLOA

Còn hàng

888

Giá: Liên hệ

Khuyến mãi

Tư vấn & Mua hàng 

Gọi 097.102.1616 - 097.103.1616

  • Giao hàng ngay 
    (Nội thành Hà Nội)
  • Giao trong vòng 
    2 đến 3 ngày 
    (Toàn quốc)

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Giới thiệu chung về sản phẩm

 

 

QED SIGNATURE HDMI DELIVERS OUR BEST VIDEO AND AUDIO PERFORMANCE UTILISING UNIQUE DESIGN TECHNIQUES SUCH AS 'BAND PASS FILTER' TECHNOLOGY AND ENHANCED ETHERNET AND AUDIO RETURN CHANNEL PERFORMANCE.

The Signature HDMI also builds on the performance of the Reference HDMI by using a 24AWG HEAC data channel for enhanced Ethernet and Audio Return Channel performance. These design secrets have been uncovered by our state-of the-art HDMI test suite. Using QED's unique 'Band Pass FilterTM' technology, Signature HDMI delivers high speed with ultra low jitter for our most accurate timing of picture data available.  It supports Deep Colour, 3D and 4K meeting the requirements of the latest HDMI specification.  Here at QED we are so proud of the level of quality and performance achieved with our cables that we offer a lifetime guarantee against manufacturing defects.   

 

 

Band Pass Filter™ Technology HDMI High Speed with Ethernet Ultra Low Jitter 3D & 4K Compatible

 

 

FEATURES AND BENEFITS

UNRIVALLED VIDEO AND AUDIO PERFORMANCE

Independently tested to 21.9Gb/s* to deliver High Speed w/Ethernet and the latest HDMI specification. This is over double the High Speed classification data rate of 10.2 Gb/s. Supports Full HD, 3D, 4K and Deep Colour.

 

BAND PASS FILTER TECHNOLOGY

A special passive equaliser network is built unobtrusively into the head shell at the TV end of the cable. This effectively removes components of the signal above and below the HDMI band pass frequency which contribute to the unwanted timing errors. This takes jitter to an 'Ultra Low' level reducing cable induced timing errors that could appear on your TV or projector screen.

 

*QED Laboratory tested 1m length using unequalised pseudo random bit pattern and standard eye mask for TP2 (H = 0.6TBIT V = 335mV).

 

 

 

ULTRA LOW JITTER

Signature HDMI measures at less than 37ps of jitter, over half of that found in a typical branded cable of the same length and specification.

INDIVIDUALLY SCREENED TMDS PAIRS FOR IMPROVED INTERFERENCE IMMUNITY

Protects delicate signals from interference for enhanced signal integrity and quality.

 

SPECIFICATIONS

 

99.999% Oxygen Free Copper conductors
3D Compatible
Supports 4k x 2k Resolution
Full HD 1080p60
Deep Colour 
HDMI Ethernet & Audio Return Channel
Lifetime Guarantee

 

 

 

 

 

WHAT THIS CABLE IS USED FOR

CONNECT YOUR:

Blu-ray Player

DVD Player

Digital TV Box

Games Console

TO YOUR:

AV Amplifier

Receiver

CABLES MATTER

In electronics jargon, jitter is the unwanted deviation of a periodic signal from its assumed period as compared to a known reference signal. In other words, the timing of a signal which should be rock steady is drifting about at random.

 

As HDMI data rates increase to allow for better and better picture quality and extra features such as HD, Deep Colour and 3D, more and more is asked of the weakest link in the HDMI chain - the cable itself. Because of the affect on the signal of the electrical parameters in the twisted pair Transition Minimised Differential Signalling (TMDS) links, jitter is introduced into the transmission. This problem gets worse as the data rate and/or cable length increases.

 

Because there is no error correction mechanism in the HDMI link and the bit clock is regenerated from the 1/10th speed master clock using the jittery data as a reference, this can allow bit errors to be introduced into the video data that then appear on the TV or projector screen. The TMDS link is transmission minimised to reduce errors and the cable performance is specified so that these errors are theoretically limited to a maximum of four per second in a 1080p60 picture.

However, these errors can nevertheless affect viewer enjoyment of the program material and in subjective viewing trials clear differences in picture quality are reported by reviewers when comparing different HDMI cables.

In order to minimise cable induced jitter QED utilise a special passive equaliser network built unobtrusively into the head shell of the new Signature range cables. The cable is directional and, sited at the TV end, the filter effectively removes components of the signal above and below the HDMI band pass frequency which contribute to the unwanted timing errors.

The filter is also optimised to ensure the signal level does not drop below the predefined amplitude specified by the HDMI governing body. This has the effect of reducing cable induced timing errors to less than half that found in a typical branded cable of the same length and specification. 

 

 

QED VS THE COMPETITION

 

The trace above shows a typical HDMI cable which is just able to pass the High Speed test at 10.2Gb/s. This cable will perform within the HDMI specification at a bit error rate of 10-9 (that’s four wrongly coloured pixels per second in a 1080p60 picture) however the large amount of jitter (95ps) in the trace could introduce perceptible degradation of the audio and video performance.


The trace above shows a QED Signature cable at the same speed and of the same length. The cable induced jitter is reduced to just 25ps! Because the timing error in the signal is drastically reduced the data derived clock used to tell the TV when to read the incoming data becomes more accurate making it almost impossible for bit errors to occur.

This gives the cable an enormous amount of headroom. The HDMI Authorised Test Centre measurement for High Speed HDMI is taken at 10.2 Gb/s but QED Signature HDMI has been independently tested in our laboratories at a staggering 21.9 Gb/s* for a 1m cable using a pseudo-random bit pattern test. This gives the cable nearly five times the capacity required for a Full HD or 3D picture.


 

 

 

OVERALL PERFORMANCE

 

     Band Pass Filter™ Technology

 

BAND PASS FILTER™ TECHNOLOGY

Incorporates electronics to apply a passive equalization network designed to improve the High Speed jitter performance of the cable. The signal is filtered to remove unwanted components of the signal above and below the required frequency band. Used to convert a low jitter cordage to an ultra low jitter one.

 

    HDMI High Speed with Ethernet

 

HDMI HIGH SPEED WITH ETHERNET

Applies to any HDMI cable that has been tested at an authorised test centre and has been found to pass the eye mask test at a combined data rate of 10.2Gb/s 340Mhz pixel clock. The cable must also have passed testing of the CEC and DDC connectivity and be compliant with HDMI Ethernet and Audio Return Channel test procedure.

 

        Ultra Low Jitter

 

ULTRA LOW JITTER

Jitter is the undesired deviation from true periodicity of an assumed periodic signal in electronics and telecommunications, often in relation to a reference clock source. A cable displaying ultra low jitter has been measured at
typically 30ps.

 

      3D & 4K Compatible

 

3D & 4K COMPATIBLE

3D = compatible with 3D TVs; cable has a minimum bit rate of 4.45 Gb/s

1080p Full HD = a video resolution with a bit rate of 4.45 Gb/s

4K = Highest native video resolution offered by HDMI 1.4b; 4096×2160p24 36 bit/px = bit rate 8.03 Gb/s

High Speed with Ethernet = 10.2Gb/s so any High Speed Cable supports all these resolutions

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