Optical space communication apparatus
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0176333
(1998-10-22)
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우선권정보 |
JP-0309796 (1997-10-24) |
발명자
/ 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
Fitzpatrick, Cella, Harper & Scinto
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인용정보 |
피인용 횟수 :
5 인용 특허 :
9 |
초록
▼
An optical space communication apparatus for performing communication with an party apparatus by transmitting a light signal into a free space includes a signal selector for selecting and intercepting a beam including a light beam and background light from the party apparatus, a detector for detecti
An optical space communication apparatus for performing communication with an party apparatus by transmitting a light signal into a free space includes a signal selector for selecting and intercepting a beam including a light beam and background light from the party apparatus, a detector for detecting a beam via the signal selector, and a signal outputting device for comparing an output signal outputted from the detector when the signal selector intercepts the light beam from the party apparatus, with an output signal outputted from the detector when the signal selector does not intercept the light beam from the party apparatus, and for outputting a signal representing a difference between the output signals.
대표청구항
▼
An optical space communication apparatus for performing communication with an party apparatus by transmitting a light signal into a free space includes a signal selector for selecting and intercepting a beam including a light beam and background light from the party apparatus, a detector for detecti
An optical space communication apparatus for performing communication with an party apparatus by transmitting a light signal into a free space includes a signal selector for selecting and intercepting a beam including a light beam and background light from the party apparatus, a detector for detecting a beam via the signal selector, and a signal outputting device for comparing an output signal outputted from the detector when the signal selector intercepts the light beam from the party apparatus, with an output signal outputted from the detector when the signal selector does not intercept the light beam from the party apparatus, and for outputting a signal representing a difference between the output signals. eroaryl residues of the aforementioned groups are unsubstituted or mono- or multiply-substituted by a substituent selected from Z. 18. A method in accordance with claim 14, wherein R1and R2each independently are a benzyl group, a 2-phenethyl group, a 3-phenylpropyl group or a group of formula III or IV, wherein the groups A1and A2are methylene, 1,2-ethanediyl or 1,3-propanediyl and A is methylene, phenylmethylene, 2-phenylethane-1.1-diyl, 1,2-ethanediyl or 1,3- propanediyl, whereby the respective aryl and heteroaryl groups are unsubtistuted or substituted by a substituent selected from Z. 19. A method in accordance with calim 18, wherein the compound is 5-[(2,4-bis -(4- methylphenylmethoxy)phenyl)methylene]-4-oxo-2-thioxo-3-thiazolidineacetic acid. 20. A method in accordance with claim 18, wherein the compound is 5-[(2,5-bis-(4- methylphenylmethoxy)phenyl)methylene[-4-oxo-2-thioxo-3-thiazolidineacetic acid. 21. A method in accordance with claim 18, wherein the commpound is 5-[(2,5-bis- (3-(4-chlorophenyl)propoxy)phenyl)methylene[-4-oxo-2-thioxo-3-thiazolidineacetic acid. 22. A method in accordance with claim 18, wherein the compound is 5-[(2- phenylmethoxy-5-(3-phenylpropoxy)phenyl)methylene[-4-oxo-2-thioxo-3-thiazolidineacetic acid. 23. A method in accordance with claim 18, wherein the compound is 5-[(2-(2- thienylmethoxy)-5-(3-phenylpropoxy)phenyl)methylene[-4-oxo-2-thioxo-3-thiazolidineacetic acid. 24. A method in accordance with claim 18, wherein the compound is 2-{5-[(2,4-bis- (4-methylphenylmethoxy)phenyl)methylene[-4-oxo-2-thioxo-3-thiazolidine}-2-phenylacetic acid. 25. A method in accordance with claim 18, wherein the compound is 2-{5-[(2,4-bis- (4-methylphenylmethoxy)phenyl)methylene[-4-oxo-2-thioxo-3-thiazolidine}-3-phenypropionic acid. 26. A method in accordance with claim 18, wherein the compound is 2-{5-[(2,4-bis- (4-methylphenylmethoxy)ph
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