Beware: The Magical HD Analog Converter

Author: John Honovich, Published on Jul 07, 2015

What if there was a small device that could instantly convert / translate between AHD, CVI and TVI?

Gone would be any compatibility issues between the three competing but fast growing HD analog offerings.

***** ** * ****** ** *** ****** ******** ** ** this *** ***** *** **** **** ******** ***** **.

** **** ****, ** ******* *** *********, *** ******** *** insights **** *** ** *** ***** ** ****** *********.

The ******

**** ** **** *** ****** ***** **** *** ****** ** operate:

*** ***** ** **** ***'* ******, ** ******* *** ****** and ********, *** *** ****** ******** / ******* ******** ************ type *** **** *** *** ********.

The ********

***** *** ******* ********:

  • *** ********* *** ***** ****, **-**** ******* **** ** ***** record
  • **** ** ***** ************ ***** (***, ***, ***) *** **** certainly ****** ********* / ** ** *** ********** *********.
  • ** ** **** *** **** ** ****** *******, *** ** going ** ******* **** - *** ****** ******** ** *** camera / ******** ********?

***********

*** ***** ** ****** ******** ******* ******** ******** ** **** device:

"**** ******** ** ******** ** * ***-*** ******* ****** "***" in *****. ** ** ********* * ******* ******** ******* *** license ********** **** ***** (***), ******** (***) ** ********* (***). Thus, ** ***'* ******* ** *** ********. *******, *** *** time *****, ** *** *** ****** ** *** ******* *** is *** ****** ********** ********* ** *******. ******* ** ***** distributors, *** **** *** ******** ***** ******** ** ********, ****** knows *** ** ******* ***. **** ********* **** **** *** to ***** *** ****************. ** ** ***, ****** *** **** HDI ** ***** *** ***** ************ **** ***** *********. ******** is *** ******* * ******** ** *****.

*** *** ** ****** ********* *** ****** *** ********* **** this ******** ******* ***** *** **** ************* ****** *** *********** issues ******* ** **** ******* ********. **** *** **** ************* issues **** **** ** ********* **** ********** **** **** ****** get *** ******* *****, **********, *** ***** ** *** ***. Distance ************ *** ******* ** ****. ** ********* ***** ** support **** ** *** ********* *** **** **** **** *** we **** ** *** ** ******* **** *** *** ******** settings *** ********* ***. ** *** *** *******, *** ************* issues *** ******** ** *** ***** **** ** ****** ** Dahua, ******** ** *********, ********, ******* ** ***.

*** **** ******* *** *** "**********" *** ********* *** **** they ****** **** ** ****** **** ******* ** *****. *** have ********* **** ** ******. ** * ******, ***** *** no ********** ********** ********* ** ***** *** **** ** *** this ******** *** ** *** ****** ** ********, ***********, *************, and ****** ******* ******* **** *** ****** ** ********* **** wrong. *******, ** *** *** *** ***** *** *** ********* selling ** *** ***** ** ***** *** ******* ***** ************* who *** *** ****** ** ******** ********** ** ******* ******. These ******* ************* *** *** ** **** * ***** **** in *** ***** *** *** **** ****** ***'* ****.

*****, ** ** ****** ********* *** ***** ********** ***, **** end ***** **** ** **** **** **** *** ****** ***** they *** **** *** ****** ** *** *****. ** ** a ******** *** *** "**********" *** ********* ** ******* **** bootleg ********.** ******* *** *** ************* *** ******* ** ***** ******* against *** **** ********* **** **** *** ****** **** **** in *****. ******** **** ***** ** **** * ******** *** this *** ******* ** **** ***** ***'* *** *** ******* solution ** * **** ****** ** ***'* *** ***** ********."

The ****

***** ******, ***** *** *********** ** **** ******'* ********, **** appears ** ** * ****** *** ********.

*******, ** **** ********* *** ********* *****. ***** ** * real **** ** ******* **************** ****** *** ********* ** ****** offerings. ***** **** ******* ******* ********** *****, *** ******* ****** and **********, **** ****** *** ***** ** ****** **** *** all *** **** *** *** ** ****** ***** *** *******. We **** *** **** ** ********* ****** *******, ***** **** *********** ********* *** *** *** **** ***, thinking **** *** *** ****** * ******* **** *** ******.

******* ** ********* ************ ********, *** *** ** ****** ********* need **** *** ** **** ** ****** ** ********* ***** 'flavors' ** ** ****** **** ******** *******. *** *********** **** be *****, *********, ********** *********. ***** *** ***** *** ***** points, ** ** *** ***** **** **** **** ** ****** but ** **** ****** ******** ********** ** ****** ************* **** care ***** **************** *** *********.

Comments (22)

One plugs it into one's camera, in between the camera and recorder, and the device converts / outputs whatever transmission type you need for the recorder.

Why do you think the switch is a converter? Can you buy it stand alone?

If it is a dongle converter I am definitely impressed; I abandoned the idea, (with j.d.'s encouragement), a while back here, Can You Create A TVI To CVI Adapter?.

Did the major Analog provider state it was an inline converter? My thought was that was just a switch to the camera to change the output type to the dvr.

Since you may not be able to reach the OSD initially, depending on which kind of recorder you are using, they needed an external way to switch the output format of the camera.

Of course, a 5 way analog converter the size of a key fob is way cooler, so I'm hoping you are right!

Thanks John,

Very interesting info. Maybe I am missing details but I believe the white thingy is just a switch and mainly serves as the camera adjustment (OSD - on-screen display) i.e. contrast, day/night, exposure, color, shutter speed, etc. Nearly all the cheap cameras from China I have tested have this same little joystick attached to the power/video cable permanently. It seems here the same joystick is used to toggle between the analog hd formats when first powering the camera up but otherwise is likely used to adjust the camera settings as above.

If this is the case then they likely have the chip(s) that controls which hd analog format is used is inside the camera itself on the main board or a daughter board or something.

But as your information above indictates, it seems the HDI has somehow "hacked" the HD formats as putting separate chips from Dahua, Techpoint and nextchip in each camera would make them too expensive. This would explain the performance issues.

A, Karsten, I am not sure how this device works internally or is attached. Regardless, it's pretty clearly super high risk, given the legal and support issues it faces.

Personally, I would kill for such as device as in an installer as a basic tool added to my bag of tricks. A leagal version costing about $100.00 would be well worth it. Never to be left within the system as another point of failure.

It is a possble solution at the technocal side because they(Dahua, Techpoint and Nextchip) are selling the Tx chip(s) itself and a using licence. It said if the device uses the Tx chip of each solutions, no legal issues. But still leaving support issues.

The "magic" is not in the dongle. It is in the camera. The dongle only tells the camera which of the three types of output is required.

Making a camera with all three output types is not that difficult or expensive. It adds $2.5 - $3 more to the bom.

We bought 4 of them yesterday so we are going to do a test.

Agreed.

The 5-way rocker switch itself though probably costs more than any of the PHY chips. Magic is cheap, but not free.

It is basically a bootleg solution without any license permission from Dahua (CVI), NextChip (AHD) or Techpoint (TVI).

Is it possible to confirm this statement with Dahua, Nextchip or Techpoint?

It sounds like a manufacture spreading FUD.

Reason? What chipsets would they actually be using to accomplish this, besides D,N,T made chips?

Certainly not their own?

Do the chip manufacturers place some restriction on the final use of the chips, i.e. "No hybrid devices"?

As far as I am aware there is no license required for using the chips. Only chip manufacturers who make compatible chips are/may be, required to license the technology.

Agree 3. What's your guess?

An OEM created their own three in one chip, or bought one module each from the three manufacturers and put them in one camera?

Granted they may not work so well, because even buying all three chips might still take a bit of engineering before working well.

Prediction: by next year this time, most OEM Analog HD cameras will autodetect and support all three variants.

Update: Version 3 of TVI (and AHD?) and CVI have apparently converged into a single standard or are at least cross compatible.

IMHO, they agreed at least in part because they didn't want the 5-way switch guys to have a compatibility edge.

I agree. I think the hacked converters and their popularity helped motivate the primary providers to do something legit.

I was told by a Chinese manufacturer, when he first started selling a combined AHD and TVI camera, that they used two chips. Adding a third chip to add CVI is not that difficult.

That specific manufacturer might be using two chips but I have been told by multiple chip suppliers that they are definitely not supplying chips to the magic device discussed above.

Can you clarify that?

Are the chip suppliers claiming that the actual chips are not made by them, or are only saying that they are not supplied by them?

Asserting the latter claim without the former sounds like a non-denial denial.

My understanding is both. They are claiming no connection between them and this HDI company.

This looks to be a pcb for a multi-format board camera. It does appear to only have one PHY, the HDI 8901: (the biggest chip shown in the picture shown below, on the underside of the pcb - right half)

That combo chip is actually smaller than most single protcol chips:

whats the chinese word for irony

Fèngcì

someone is pirating tech within china from chinese companies, not saying its a good thing but mabye its just me who thinks they really dont have a right to complain about legal practices when they violate the rest of the worlds legal practices

FYI, Techpoint is a US company, Nextchip is South Korean.

yeah but who manufactures them and for what companies do those chips go into chinese owned products ?

Nextchip is the only one I would say may be playing by the rules and getting screwed as the Koreans are super competitive and generally dont like the chinese.

Nextchip is the only one I would say may be playing by the rules...

Considering that 'their' copycat AHD technology was introduced a year later than Dahua's, I'm not sure what rules you are referring to.

And how are the Chinese 'screwing' the Koreans anyway?

Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports

Directory of Video Intercoms on Nov 13, 2018
Video Intercoms, also known as Video Door-Phones or Video Entry Systems, have been growing in the past decade as more and more IP camera...
Chinese Government Increases Hikvision Ownership on Nov 12, 2018
The Chinese government - Hikvision's controlling shareholder - is increasing its ownership of the video surveillance giant amid sharp stock price...
Directory Of Video Doorbells on Nov 06, 2018
Video doorbells are one of the fastest growing categories in video surveillance, especially among residences. The optimal placement of these...
Network Cable Shootout - Belden, Hikvision, Honeywell, NavePoint CCA, Windy City Wire on Nov 05, 2018
Every IP camera install needs UTP cabling. But how much of a difference is there between dirt cheap generic cables found online and the bigger,...
Unisight Company Profile on Nov 01, 2018
Hikvision's largest US OEM, LTS has started to carry Unisight, whose products (shown below) look a lot like Hikvision's rival Dahua: Who is...
Hikvision President Addresses AI and USA Challenges on Oct 31, 2018
In frank recent China interviews, Hikvision's President Hu Yangzhong has addressed challenges impacting the video surveillance industry and...
Wyze Explosive Growth Disrupting Consumer IP Camera Market on Oct 30, 2018
Wyze, a company founded only in 2017, is poised to disrupt the consumer IP camera market by combining American marketing and Chinese manufacturing...
Hikvision Parent Conducts Communist Party Training, Urges Strengthened Party Leadership on Oct 30, 2018
Employees of Hikvision’s parent (CETHIK, for CETC HIKvision) underwent intensive Chinese Communist Party training last month where they came up...
Huawei To Be “Top Three Global Position” in Video Surveillance on Oct 29, 2018
Huawei - China’s biggest networking gear and smartphone maker - plans to become one of the top three global video surveillance manufacturers in...
World’s Top Press Freedom Watchdog RSF Condemns China's IPVM Block on Oct 26, 2018
Reporters Without Borders, the world’s top press freedom watchdog, has condemned IPVM getting blocked in China after its critical reporting of...

Most Recent Industry Reports

'Sticker' Surveillance Camera Developed (CSEM Witness) on Nov 16, 2018
The Swiss Center for Electronics and Microtechnology (CSEM) has announced what it calls the: world’s first fully autonomous camera that can be...
ISC East 2018 Mini-Show Final Report on Nov 16, 2018
This is our second (updated) and final show report from ISC East. ISC East, by its own admission, is not a national or international show, billed...
Facial Detection Tested on Nov 16, 2018
Facial detection and recognition are increasingly offered by video surveillance manufacturers. Facial detection detects faces in an image/video...
Throughtek P2P/Cloud Solution Profile on Nov 15, 2018
Many IoT manufacturers either do not have the capabilities or the interest to develop their own cloud management software for their devices....
ASIS Offering Custom Research For Manufacturers on Nov 15, 2018
Manufacturers often want to know what industry people think about trends and, in particular, the segments and product they offer.  ASIS and its...
Hikvision Silent on "Bad Architectural Practices" Cybersecurity Report on Nov 14, 2018
A 'significant vulnerability was found in Hikvision cameras' by VDOO, a startup cybersecurity specialist. Hikvision has fixed the specific...
French Government Threatens School with $1.7M Fine For “Excessive Video Surveillance” on Nov 14, 2018
The French government has notified a high-profile Paris coding academy that it risks a fine of up to 1.5 million euros (about $1.7m) if it...
Integrator Credit Card Alternative Divvy on Nov 13, 2018
Most security integrators are small businesses but large enough that they have various employees that need to be able to expense various charges as...
Directory of Video Intercoms on Nov 13, 2018
Video Intercoms, also known as Video Door-Phones or Video Entry Systems, have been growing in the past decade as more and more IP camera...
Beware Amazon Go Store Hype (Tested) on Nov 13, 2018
IPVM's trip to and testing of Amazon Go's San Francisco store shows a number of significant operational and economic issues that undermine the...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact