Patent ID: 6974942

Claim:
A receiving apparatus for receiving optical information, comprising: a light receiving element array having a plurality of light receiving elements arranged in an array for receiving the optical information that is dispersed within a spatially predetermined range and that corresponds to a plurality of bits of parallel data fed to a plurality of light emitting diodes arranged in an array and for outputting a plurality of electric signals at levels corresponding to amounts of light in the received optical information, wherein the light receiving elements output the plurality of electric signals in parallel; an information extraction circuit for receiving the plurality of electric signals output in parallel from the light receiving element array and extracting information in accordance with the optical information based on the plurality of electric signals; and an optical system for condensing the optical information to a predetermined region of a light receiving region of the light receiving element array, wherein the optical system is capable of adjusting a position of a light axis direction based on a control signal; and the information extraction circuit outputs the control signal for adjusting the position of the light axis direction to the optical system when information in accordance with the optical information cannot be extracted based on the plurality of electric signals, wherein said optical information includes a plurality of information corresponding to bits of a plurality of bits of parallel data and is dispersed in a spatially predetermined range.