Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 7085039 | Hybrid Raman/erbium-doped fiber amplifier and transmission system with dispersion map A hybrid Raman-EDFA provides gain equalization over the C-band and L-band. The hybrid Raman-EDFA includes a Raman section producing a Raman gain and an EDFA section producing an EDFA gain complementing the Raman gain. The EDFA section preferably includes a highly in... | 08/01/2006 |
| 6731381 | Method and apparatus to measure gain spectra of erbium doped fiber amplifier A test apparatus includes a broadband noise source, a test station, and a spectrum analyzer. A method using the test apparatus to measure the spectral gain of an erbium doped fiber amplifier (EDFA) under test includes steps of providing an optical signal from a broa... | 05/04/2004 |
| 6697575 | System and method for increasing capacity of long-haul optical transmission systems A method of increasing capacity on a long-haul undersea cable system having at least one optical fiber, said method comprising interleaving counter-propagating forward-propagating and backward-propagating signals in forward and backward channels on a comm... | 02/24/2004 |
| 6577424 | Chromatic dispersion compensator providing dispersion compensation to select channels of a wavelength division multiplexed signal A dispersion compensator provides dispersion compensation to a WDM optical signal having a plurality of channels located at different wavelengths and traveling in an optical transmission path. The dispersion compensator includes an optical splitter adapte... | 06/10/2003 |
| 6567577 | Method and apparatus for providing chromatic dispersion compensation in a wavelength division multiplexed optical transmission system A WDM optical communication system is provided that includes a transmitter and a receiver. An optical fiber transmission path couples the transmitter to the receiver. The transmission path includes at least one repeater having an optical amplifier located... | 05/20/2003 |
| 6385366 | Fiber to the home office (FTTHO) architecture employing multiple wavelength bands as an overlay in an existing hybrid fiber coax (HFC) transmission system A method of operating a hybrid fiber coax transmission system to provide Fiber to the Home Office (FTTHO) functionality comprises directing, via a fiber portion of the transmission system, first wavelength division multiplexed (WDM) optical signals corres... | 05/07/2002 |
| 5392154 | Self-regulating multiwavelength optical amplifier module for scalable lightwave communications systems In a multiwavelength lightwave communications system automatic self-power regulation on a channel-by-channel basis is achieved with a cascade of multiwavelength amplifier modules (200), wherein each multiwavelength amplifier module in the cascade includes... | 02/21/1995 |
| 4545713 | Waveguide robot system for laser beam An articulating waveguide arm assembly, comprising long arm segments, (11, 12, 15, 17, 19) and short corner segments (13, 14, 16, 18) has a single-mode hollow dielectric waveguide located inside each segment and an optically reflecting device (33, 34, 37,... | 10/08/1985 |
| 4528670 | Short coupled cavity laser Single longitudinal mode operation is achieved and maintained under CW and high speed (Gbps) current modulation conditions by a short coupled cavity laser including a short cavity semiconductor laser having two parallel mirror facets and a reflective surf... | 07/09/1985 |
