US5886809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light modulation system including a superconductive plate assembly for use in a data transmission scheme and method
Assignee: TerraComm Research Inc
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Filing: 1997-11-07
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Granted: 1999-03-23
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Expires: 2017-11-07
Abstract
Abstract A method and apparatus for modulating light, wherein a light source provides light of a certain wavelength to be modulated. A light modulating device is placed in the optical path of the light source. The resulting optical pulses transmitted through the light modulating device are converted from the original wavelength to a lower wavelength by a frequency converting device.
Inventors
- 👤 Kenneth A. Puzey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:56
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/0147; H; H04; H04B; H04B10/00; H04B10/50; H04B10/501; H04B10/503; H04B10/505; H04B10/508; Y; Y10; Y10S; Y10S505/00; Y10S505/70; Y10S505/701; Y10S505/702
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
147 words
A light modulation system, comprising: (a) a light modulating device having an output and providing at its output a train of light pulses, each of which has a certain wavelength; (b) a silica glass fiber optic link having an input; (c) a wavelength changing device optically coupled to and between the output of said light modulating device and the input of said fiber optic link for (I) receiving said light pulses, (ii) changing the wavelength of said pulses, and directing the wavelength changed pulses into the input of said fiber optic link for conveyance by the latter to a point remote from said light modulating device, wherein the wavelength of the light pulses at the output of said light modulating device is approximately between 2 and 14 microns and wherein said wavelength changing device reduces the wavelength of said pulses to between approximately 0.5 and 2 microns.
Claim 2
Dependent Claim
147 words
A light modulation system, comprising: (a) a light modulating device having an output and providing at its output a train of light pulses, each of which has a certain wavelength; (b) a silica glass fiber optic link having an input; (c) a wavelength changing device optically coupled to and between the output of said light modulating device and the input of said fiber optic link for (I) receiving said light pulses, (ii) changing the wavelength of said pulses, and directing the wavelength changed pulses into the input of said fiber optic link for conveyance by the latter to a point remote from said light modulating device, wherein the wavelength of the light pulses at the output of said light modulating device is approximately between 2 and 14 microns and wherein said wavelength changing device reduces the wavelength of said pulses to between approximately 0.5 and 2 microns.
Claim 3
Dependent Claim
31 words
A light modulation system according to claim 1 wherein said train of light pulses provided by said light modulating device contains data, whereby said system serves as a data transmission system.
Claim 4
Independent Claim
117 words
A method of transmitting data comprising the steps of: (a) providing a light modulating device having an output and generating at its output a train of light pulses which is of a given wavelength and which contains data; (b) providing a wavelength changing device for changing the wavelength of said train of light pulses; and (c) directing said wavelength changed pulses into a silica glass fiber optic link for transmission away from said light modulating device, wherein the wavelength of the light pulses at the output of said light modulating device is approximately between 2 and 14 microns and wherein said wavelength changing device reduces the wavelength of said pulses to between approximately 0.5 and 2 microns.
Claim 5
Independent Claim
117 words
A method of transmitting data comprising the steps of: (a) providing a light modulating device having an output and generating at its output a train of light pulses which is of a given wavelength and which contains data; (b) providing a wavelength changing device for changing the wavelength of said train of light pulses; and (c) directing said wavelength changed pulses into a silica glass fiber optic link for transmission away from said light modulating device, wherein the wavelength of the light pulses at the output of said light modulating device is approximately between 2 and 14 microns and wherein said wavelength changing device reduces the wavelength of said pulses to between approximately 0.5 and 2 microns.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-22 | 2002-09-21 | 2003-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-22 | 2006-09-21 | 2007-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-22 | 2010-09-21 | 2011-03-23 | $7700.00 | Window Closed / Lapsed |