| 摘要 |
A memory access system that includes a data sending apparatus, an optical transmission medium, and a data receiving apparatus. The data sending apparatus includes a signal generator, an optical switch, and an optical modulator. The signal generator controls the optical switch to output the optical wave of the wavelength corresponding to the target memory, and the optical wave carries an electrical signal corresponding to an access request, so that an optical signal carrying the access request is directly transmitted from the optical transmission medium to the data receiving apparatus without passing through the optical switch anymore, which avoids noise interference generated when the optical signal passes through the optical switch. |
| 主权项 |
1. A memory access system, comprising:
a data sending apparatus; an optical transmission medium; and a data receiving apparatus, wherein the data sending apparatus comprises a signal generator, an optical switch, and an optical modulator, wherein the data receiving apparatus comprises a demultiplexer, multiple memories, and optical receivers corresponding to the multiple memories in a one-to-one manner, wherein an electrical input end of the optical switch is connected to the signal generator, wherein an optical input end of the optical switch is connected to a multi-wavelength light source and receives an optical wave emitted by the multi-wavelength light source, wherein an output end of the optical switch is connected to an optical input end of the optical modulator, wherein the signal generator is connected to a signal input end of the optical modulator, wherein an input end of the demultiplexer of the data receiving apparatus is connected to the optical modulator of the data sending apparatus using the optical transmission medium, wherein an output end of the demultiplexer of the data receiving apparatus is connected to the optical receivers, wherein the signal generator is configured to:
send an electrical signal to the optical modulator, wherein the electrical signal carries an access request for a target memory; andcontrol, according to a preset correspondence between a memory identifier and an optical wavelength, the optical switch to output an optical wave of a wavelength corresponding to the target memory to the optical modulator; wherein the optical modulator is configured to:
receive the optical wave sent by the optical switch; receive the electrical signal input by the signal generator;use the electrical signal to modulate the optical wave so that the electrical signal is loaded to the optical wave to form an optical signal; andsend, using the optical transmission medium, the optical signal to the data receiving apparatus in which the target memory is located, wherein the demultiplexer is configured to:
receive the optical signal using the optical transmission medium; andsend, according to the preset correspondence between a memory identifier and an optical wavelength, a demultiplexed optical signal to an optical receiver corresponding to the target memory, and wherein the optical receiver is configured to:
convert the received optical signal into an electrical signal; andsend the electrical signal to the target memory. |
