
US Patent No: 5,699,391
Number of patents in Portfolio can not be more than 2000
Digital desynchronizer
Stats
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Dec 16, 1997
Issued date -
May 31, 1995
filing date -
08/456,235
serial no -
In Force
status
Importance
Abstract
A digital desynchronizer device (10) includes an elastic store unit (12) that receives data in an asynchronous manner and synchronously transmits the data in response to a synchronization clock generated by a clock generator (14). The clock generator (14) operates off of a reference oscillator unit (16). The clock generator (14) generates the synchronization clock signal in response to pointer adjustments identified by a pointer movement unit (18). The clock generator (14) also generates the synchronization clock signal in response to mapping jitter identified by a mapping unit (20). The pointer movement unit (18) and the mapping unit (20) identify pointer adjustments and mapping jitter, respectively, independent of each other. The clock generator (14) adjusts a width of a specific pulse bit in response to pointer adjustments identified by the pointer movement unit (18). Clock generator (14) also adjusts a width of a specific bit position, separate from the pulse bit position used for pointer adjustments, in response to mapping jitter identified by the mapping unit (20).
First Claim
Related Publications
International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,119,406 Digital signal synchronization employing single elastic store | 29 | 1990 | |
| 5,052,025 Synchronous digital signal to asynchronous digital signal desynchronizer | 36 | 1990 | |
| 5,268,936 Synchronous digital signal to asynchronous digital signal desynchronizer | 38 | 1993 | |
| 5,337,334 Synchronous digital signal to asynchronous digital signal desynchronizer | 28 | 1993 | |
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| 5,200,982 In-line piece-wise linear desynchronizer | 21 | 1991 | |
| 5,404,380 Desynchronizer for adjusting the read data rate of payload data received over a digital communication network transmitting payload data within frames | 22 | 1992 | |
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| 5,457,717 Apparatus and method for eliminating mapping jitter | 23 | 1993 | |
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| 5,367,545 Asynchronous signal extracting circuit | 33 | 1992 | |
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| 5,343,476 Transmission system for the synchronous digital hierarchy | 22 | 1993 | |
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| 5,357,514 Distributed bit-by-bit destuffing circuit for byte-stuffed multiframe data | 11 | 1992 | |
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| 5,311,511 SONET DS-N desynchronizer | 27 | 1993 | |
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| 4,811,340 Synchronization of asynchronous data signals | 67 | 1986 | |