Manchester coder/decoder
AssigneesFrance Telecom, La Poste
InventorSalman Abou Hassan
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Abstract
The Manchester coder/decoder of the invention includes the following modules. A synchronization signal generation module (11), gives the clocks' start signal. A module (12) for the synchronization and generation of clocks generates the transmission/coding and decoding clocks and a low frequency clock. A decoding module (13) includes a flip-flop driven by the decoding clock. The decoding is a simple sampling of the input signal of the Manchester coded data which is to be decoded during the reception phase. A coding module (14) carries out an "OR EXCLUSIVE" function between the input signal to be coded in Manchester code and the transmission clock.
Claims13
A Manchester coder/decoder, operating without retiming a received Manchester coded input signal, the coder/decoder comprising the following modules:
- a synchronization signal generation module, operated by the coded input signal and providing a start signal for clocks of the coder/decoder;
- a module for the synchronization and generation of clocks which generate transmission/coding and decoding clocks and a low frequency clock, the decoding clock being synchronized to the received coded input signal;
- a decoding module, which includes a flip-flop driven by the decoding clock, the decoding being a simple sampling of the input signal of the Manchester coded data which is to be decoded, during the reception phase;
- a coding module, which carries out an "OR EXCLUSIVE" function between an NRZ input signal to be coded in Manchester code and the transmission/coding clock.
Dependencies are inferred from the claim text.