Patent ID: 7912382
Filing Date: 2011-03-22
Classification: H04B

Abstract:
1. An optical-electrical transmitting device for transmitting a signal, comprising: an electrical signal transmitting circuit which divides a transmission signal into a first transmission signal and a second transmission signal; a switching device which is electrically connected to receive and converts the first transmission signal into an identification signal for determining the transmission signal to be one of a fast signal and a slow signal according to data speed; and a selector which is electrically connected to receive the second transmission signal and the identification signal and outputs the second transmission signal to an optical waveguide when the transmission signal is determined to be the fast signal and an electrical wiring when the transmission signal is determined to be the slow signal, the optical waveguide optically connecting the electrical signal transmitting circuit to an electrical signal receiving circuit, the electrical wiring electrically connecting the electrical signal transmitting circuit to the electrical signal receiving circuit, wherein the switching device comprises a cycle determining device which determines a cycle, a first counter which counts a first set of numbers of transmissions within the cycle, a first comparator which compares the first set of number with a number retained in the first comparator, a first retaining device which retains a result from the first comparator for the cycle, a second counter which counts a second set of numbers of transmissions within the cycle, a second comparator which compares the second set of number with a number retained in the second comparator, a second retaining device which retains a result from the second comparator for the cycle, and an accumulator which accumulate the results received from the first and second retaining devices.