[Asterisk-Users] [ot] Grandstream hardware

[Leo Ann Boon]

Patent licensing is usually, like this:
a) direct licensing if you rolled your own implementation of the specs
b) indirect - if you bought an implementation from another vendor, case 
in point Digium licenses the G.729a binary from Voiceage.

Cheers

Eric Wieling wrote:

>On Mon, 2004-01-19 at 14:01, Bob Knight wrote:
>  
>
>>Scott Stingel wrote:
>>
>>    
>>
>>>>What *I* want to know is why someone has not made a CHEAP PCI card
>>>>        
>>>>
>>with
>>    
>>
>>>>4, 8, or 16 of these DSPs on it.  This kind of card would provide
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>Expanding a bit on Nicolas' message, DSP software is complex, and
>>>      
>>>
>>there is
>>    
>>
>>>not a huge number of people who do it well.  So along with the board
>>>      
>>>
>>layout
>>    
>>
>>>and production cost (not trival for a 6- or 8-layer board), you have
>>>      
>>>
>>the
>>    
>>
>>>programming cost for both the PGA (programmable gate array) device(s)
>>>      
>>>
>>and
>>    
>>
>>>the DSP.   You also have the cost of the DSP simulators, driver
>>>      
>>>
>>development
>>    
>>
>>>etc etc.
>>>
>>>All of these must be amortized over the number of boards you expect
>>>      
>>>
>>to sell
>>    
>>
>>>- that's why the board price can get so high.  Dialogic's D600-2E1
>>>      
>>>
>>JCT
>>    
>>
>>>boards etc cost well over US$10000.  The whole point of the
>>>      
>>>
>>asterisk/digium
>>    
>>
>>>exercise is to move the complex software to the PC and take advantage
>>>      
>>>
>>of the
>>    
>>
>>>economies of scale that it brings.
>>>
>>>      
>>>
>>Don't forget power and HEAT!
>>When I was making Portmasters at Livingston/Lucent we made modem
>>boards
>>with a bunch of DSP's sitting on TDM's.  Some of those DSP's are great
>>BTU generators.  Some times you have to clock the DSP at slower speeds
>>just to
>>keep the heat down.
>>    
>>
>
>Did patent/codec indemnification come as part of the DSP product, or did
>you have to do the indemnification separately?
>
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