Patent · US Expired

Receiving apparatus, transmitting apparatus, and communication system

US6974942B2 · kind B2 · utility

0Cited by
1References
4Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 25, 2005
Grant dateDec 13, 2005
Priority date
Expiry dateMar 25, 2025

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04B10/116
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A receiving apparatus and transmitting apparatus capable of reliably transmitting and receiving a high speed optical signal and a communication system using the same, wherein provision is made of a transmitting apparatus comprising a conversion circuit for converting serially input data to a plurality of bits of parallel data given predetermined information and an LED array comprised of LED units of at least a number corresponding to the number of bits of the parallel data from the conversion circuit arranged in an array, wherein the LED units are controlled in light emission in parallel based on bit information of corresponding parallel data to emit information light dispersed in a spatially predetermined range, and of a receiving apparatus having a photo-diode array comprised of a plurality of photo-diodes for emitting electric signals of levels in accordance with amounts of light received arranged in an array, wherein the photo-diodes output electric signals in parallel, for selecting information in accordance with the information light based on the plurality of electric signals output in parallel from the photo-diode array, converting the selected parallel data to serial data, …

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.