US 7,463,674 B2
Tables for determining the signal strength of a received signal in a fibre optics transceiver
Kevin Reid Woolf, Salinas, Calif. (US); Angeline Young Rodriguez, East Palo Alto, Calif. (US); Wei-Yung Chen, Sunnyvale, Calif. (US); and Wingra T. Fang, Saratoga, Calif. (US)
Assigned to Avago Technologies Fiber IP (Singapore) Pte. Ltd., Singapore (Singapore)
Filed on Apr. 09, 2003, as Appl. No. 10/410,419.
Prior Publication US 2004/0202476 A1, Oct. 14, 2004
Int. Cl. H04B 1/38 (2006.01); H04B 10/00 (2006.01)
U.S. Cl. 375—219  [398/135; 398/128] 9 Claims
OG exemplary drawing
 
1. A transceiver comprising:
an optical receiver configured to receive an optical input signal;
a controller;
a first memory that includes a first table associated with a first set of gain values and a second table associated with a second set of gain values; and
a second memory accessible by an external host;
wherein the controller is configured to access a first value associated with a strength of the optical input signal from the optical receiver, wherein the controller is configured to access a second value associated with the first value from a first or second table dependent upon a range of either table, wherein the controller is configured to generate a third value using the second value, and wherein the controller is configured to store the third value in the second memory.