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A vest or belt is integrally formed with tubular, pet receiving passageways which extend around the wearer's body and terminate in pocket-like chambers for feeding and retrieval.
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| Number | Title | Issue Date |
| 8315525 | Amplification of interleaved optical signals A technique for generating a data signal and a beacon signal for free space optical communications involves generating a data signal having a first optical wavelength and a beacon signal having a second optical wavelength. The data signal is encoded with data via mo... | 11/20/2012 |
| 8165470 | Wavelength selecting switch In a wavelength selecting switch, light output from an input port of an input/output optical system is angularly dispersed according to a wavelength thereof, with a spectral element. Then the lights of respective wavelengths are collected by a light collecting optic... | 04/24/2012 |
| 7978978 | Topologically multiplexed optical data communication Systems and methods for encoding information in the topology of superpositions of helical modes of light, and retrieving information from each of the superposed modes individually or in parallel. These methods can be applied to beams of light that already carry info... | 07/12/2011 |
| 7639948 | System and method for wave vector multiplexed laser communication Wave vector division multiplexing (“WVDM”) is a method of free-space multiplexing for optical communications. In WVDM, wave vectors of individual laser beams are manipulated so that each individual laser beam has a unique wave vector. These individual laser beam... | 12/29/2009 |
| 7409159 | Wireless wavelength division multiplexed system A system and method for linking optical wavelength division multiplexed (OWDM) networks by using wireless communications. Each optical channel in a OWDM network is coupled to a wireless wavelength division multiplexing (WWDM) channel by a WWDM transceiver, which tra... | 08/05/2008 |
| 7386238 | Method and system for infrared data communications A method and system for conveying contextually relevant information to a wireless client are disclosed. More particularly, a transmitter transmits a diffuse infrared signal to a client having an IrDA compliant communication interface. The transmitter communicates wi... | 06/10/2008 |
| 7369774 | Optical frequency controlling device for ultra-dense wavelength-division-multiplexed optical channels Disclosed is an optical frequency controlling device for ultra-dense wavelength-division-multiplexed optical channels in which center frequencies of optical channels are aligned. An optical frequency controlling device for ultra-dense wavelength-division-multiplexed... | 05/06/2008 |
| 7277644 | Fade-resistant forward error correction method for free-space optical communications systems Free-space optical (FSO) laser communication systems offer exceptionally wide-bandwidth, secure connections between platforms that cannot other wise be connected via physical means such as optical fiber or cable. However, FSO links are subject to strong channel fadi... | 10/02/2007 |
| 7277641 | Multiple access space communications optical system using a common telescope aperture The present invention relates to a multiple access space laser communications optical system. According to the present invention, multiple optical signals containing a number of channels are simultaneously received and demultiplexed at a multiple access communicatio... | 10/02/2007 |
| 7209663 | Apparatus and method for repeating signal by using wireless optical transmission A repeating apparatus and method using wireless optical transmission is disclosed. The repeating apparatus includes a donor device for transmitting two identical copies of an optical signal by receiving a RF signal from a base station and electro-optic converting th... | 04/24/2007 |
| 7200567 | Purchasing aid logistics appliance and method for use A purchasing aid logistics appliance that assists a purchaser with a shopping list generation, in-store product location, automated checkout, and financial management. The PAL is in the form of a battery operated PAL with touch screen display and multimedia input/ou... | 04/03/2007 |
| 7116906 | Wireless optical system for high bandwidth communications A method for communicating information includes modulating a communications signal by orthogonal frequency domain modulation and transmitting the communication signal by a laser and/or light emitting diode carrier signal. ... | 10/03/2006 |
| 7085497 | Vehicular communication system A communication system includes an optical “LAN” (50) interconnecting a plurality of information sources (16a) and sinks (22a) with a light-to-electrical converter (36a) associated with an electrical RF transmitte... | 08/01/2006 |
| 7066023 | Distributed sensor array for fluid contaminant monitoring A disclosed fluid purity monitoring system employs a network of preferably information-transmissive cables fixed in place within a body of fluid. Sensors sensitive to fluid impurities are supported at various places on the network. Data representative of impurity le... | 06/27/2006 |
| 7068934 | Optical interconnect An optical interconnect comprises an input configured to receive light of a plurality of light wavelengths and a plurality of holographic optical elements. Each element configured to reflect one out of the plurality of light wavelengths and allowing others of the pl... | 06/27/2006 |
| 7038906 | Portable computer stand with integral communication method and apparatus A stand providing a communication path between peripheral devices and portable devices and providing ergonomic viewing positions to portable devices such as a portable computer. In one embodiment, a stand includes an anchor movably coupled to a base to form a recess... | 05/02/2006 |
| 7031611 | Optical routers using angular position amplification modules An optical routing device for coupling each of a plurality NE of optical incoming channels (1) to one of a plurality NS of optical output channels (5) and for orienting each of the optical beams coming through the incoming channel... | 04/18/2006 |
| 7010228 | Optical add-drop multiplexer An optical add-drop multiplexer comprises an optical switch (10) for selection of a desired wavelength channel to be extracted, a pre-processing channel assembly (20), an optical reflector (50), an optical extractor (60), a post-processin... | 03/07/2006 |
| 6993260 | Interconnecting processing units of a stored program controlled system using free space optics Internal communication signals in a stored program controlled system comprising a plurality of units configured to process signals are provided by a free space optical beam line which is proximal to all of the plurality of units. The free space beam line is configur... | 01/31/2006 |
| 6941073 | East-west separable ROADM An East-West separable ROADM particularly usable as a programmable N×M optical add/drop multiplexer with an efficient pass through of optical channels in a multi-wavelength communication system. The East-West separable ROADM uses a grating that separates multi-chan... | 09/06/2005 |
| 6934477 | Method and apparatus for free-space optical communication without eletro-optical conversion Erbium doped fiber amplifiers (ERDAs) optically couple optical signals between free-space and fiber optic links of a terrestrial optical communication network. The optical gain of transmitting and receiving ERDAs is controlled to achieve good optical signal communic... | 08/23/2005 |
| 6868237 | Terrestrial optical communication network of integrated fiber and free-space links which requires no electro-optical conversion between links Optical signals are received from a free-space link by directing received light onto a plurality of microlenses and then directing light received through each of the microlenses into a respective single mode optical fiber (SMF). Light beams from the SMFs are combine... | 03/15/2005 |
| 6754410 | Integrated wavelength-selective cross connect An integrated 1×K wavelength-selective cross connect (WSC) comprises a demultiplexer arranged to couple each of the N individual wavelength in an input optical WDM signal to a different one of N demultiplexer outputs. Each of N planar beam steerers, arranged along ... | 06/22/2004 |
| 6751373 | Wavelength division multiplexing with narrow band reflective filters A WDM demultiplexer/multiplexer comprising a plurality of narrow band reflective filters linearly disposed along an optical axis, each narrow band reflective filter reflecting a single channel or group of channels and transmitting the remaining channels, is describe... | 06/15/2004 |
| 6731878 | Free space optical communication link with diversity A free space communication system includes first and second terminals, and the first terminal includes a transmitter to transmit an input signal. The transmitter has plural laser sources, at least one optical delay line and a telescope. Each laser source modulates t... | 05/04/2004 |
| 6609839 | Device including a saturable absorber for regenerating a wavelength-division multiplex signal In a device for regenerating a wavelength-division multiplex optical signal, the optical signal to be regenerated comes from an optical fiber and is injected back into the same optical fiber or into another fiber. The device comprises at least one dispers... | 08/26/2003 |
| 6522440 | Inter-satellite optical link track sensor The present invention provides a tracking sensor and system to maintain the alignment of an optical communication beam between two terminals. A four-quadrant InGaAs photodetector receives the optical beam. Each quadrant of the photodetector transmits the ... | 02/18/2003 |
| 6271953 | Method and system for optical free space communications using non-mechanical beam steering A method and system of communicating in free space comprises a first communication terminal having a multiplexer circuit for multiplexing a plurality of analog communication signals into a single broad band frequency division multiplexed signal. A laser g... | 08/07/2001 |
| 6246498 | System and method for free space optical communications using time division multiplexing of digital communication signals A method and system of communicating in free space using an optical communication system, such as for intersatellite and satellite-to-ground communications, is disclosed. Digital communication signals are multiplexed with a plurality of other analog commu... | 06/12/2001 |
| 6047301 | Wearable computer A wearable computer communicates with its display device via an optical link. The optical link may utilize different colored LEDs and corresponding photodetectors for transmitting and receiving the video and control signals to and from the computer and th... | 04/04/2000 |
| 5966225 | Multi-channel optical transceiver A data transceiver employing optical radiation comprises transmitter assembly with an optical emitter operable in a first band and an optical emitter in a second band and a receiver assembly with a wide band optical detector which can receive signals tran... | 10/12/1999 |
| 5959752 | Optical transceiver and optical communications network for both of optical fiber transmission and free space transmission A cable network is constituted such that interconnectable, passive 4-terminal star couplers are connected to each other via optical fiber cables and a bi-directional optical relay amplifier. Cells each constituted by using free space transmission light ar... | 09/28/1999 |
| 5910851 | Multiple wavelength transceiver A communication system includes a plurality of detectors, each detector capable of detecting an electromagnetic wave of a respective different wavelength, a transmitter, the transmitter capable of generating an electromagnetic wave of one of the respectiv... | 06/08/1999 |
| 5847854 | Filtered light signal control suitable for toys A toy method and apparatus is presented which utilizes a filtered signal to control a toy. A number of signal sources are filtered such that they each provide a signal of a specific wavelength(s) or polarization angle. A number of toys contain similar fil... | 12/08/1998 |
| 5844705 | Wireless communications systems employing free-space optical communications links The cells of a wireless communications system can be subdivided into smaller subcells, in each of which the available radio frequencies can be re-used to allow denser use of the system. To avoid having to run hard-wired communications links to broadcast a... | 12/01/1998 |
| 5786923 | Point-to-multipoint wide area telecommunications network via atmospheric laser transmission through a remote optical router A point-to-multipoint bi-directional wide area telecommunications network employing atmospheric optical communication. The network comprises a primary transceiver unit, a plurality of subscriber transceiver units and an optical router. The primary transce... | 07/28/1998 |
| 4977619 | Distributed infrared communication system A two way communication system is described wherein a base unit can transfer information with remotely-located unit such as a portable infrared commuicator. The base unit produces carrier frequency signals to a plurality of distributed transmitter modules... | 12/11/1990 |
| 4975926 | Wireless indoor data communication system Described is an intraoffice communication system as the final communication link of a broadband, baseband, or fiber optic LAN. Each user or workstation is a node on the network and can transmit at high data rates with bit error rates of ࣘ10-9... | 12/04/1990 |
| 4927226 | Multiplexer for high power CW lasers Apparatus for multiplexing a coherent high power CW laser beam has a mirror mounted on a galvanometer to interrupt the laser beam and another mirror mounted on another galvanometer to deflect the laser beam to a selected pair of optical fibers. The other ... | 05/22/1990 |
| 4222880 | Arrangement for optical transmission of communications An arrangement or device for optical transmission of communications including a light transmitter with an associated receiver characterized by the receiver having a light collecting body having an index of refraction greater than 1 and containing fluoresc... | 09/16/1980 |
