Bizarre Patents
Mouse device with a built-in printer
A mouse device for use as an input device of a computer is provided that includes a housing in which recording paper is loadable, and a printer unit provided within the housing for printing on the recording paper print information received from the computer.
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| Number | Title | Issue Date |
| 7403715 | Free space optical bus A free space optical bus system and method are provided for connecting two units of circuitry across a free space gap. A first unit of circuitry includes a multiplexer that combines a plurality of bus signals to obtain an electronic combined signal and a laser that ... | 07/22/2008 |
| 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 |
| 7330661 | Method and apparatus for optical communication between devices A method and apparatus for processing a data signal for transmission to a remote device transmits at least two synchronized copies of the data signal, in optical form, in different directions. To that end, the data signal first is synchronized to a clock signal to p... | 02/12/2008 |
| 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 |
| 7127174 | Hybrid-integrated high-speed OTDM module A novel optical time division multiplexing (OTDM) module based on hybrid-integrated optical chips is disclosed. An integrated modulator chip generates optical RZ signal streams which are then interleaved in an integrated time-delay chip to produce an OTDM signal. Th... | 10/24/2006 |
| 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 |
| 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 |
| 6931231 | Infrared generator from audio signal source An apparatus and method for converting an audio signal output through a stereo headphone jack into an infrared remote control signal. The invention utilizes the audio output to generate positive and negative pulses for operating two infrared light emitting diodes pl... | 08/16/2005 |
| 6907013 | Network communications link A wireless communications link between a communication line connector and at least one audio-visual device is provided. The communications link preferably includes a communication line side unit, including: (a) a communication line side connector for engagement with... | 06/14/2005 |
| 6778781 | Health check algorithm for protection circuit in optical network An optical network has an optical splitter connected to (1) a working optical subscriber unit (OSU) of a working circuit via a working optical fiber, (2) a protection OSU of a protection circuit via a protection optical fiber, and (3) one or more optical network ter... | 08/17/2004 |
| 6771908 | Fast protection switching by snooping on downstream signals in an optical network An optical network has an optical splitter connected to (1) a working optical subscriber unit (OSU) of a working circuit, (2) a protection OSU of a protection circuit, and (3) one or more optical network terminals (ONTs), where an ONT has (i) a working line terminat... | 08/03/2004 |
| 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 |
| 6057949 | Bi-directional infrared communications system An infrared (IR) transmitter modulator/receiver controller (TM/RC) encodes downlink serial digital data and precise time synchronization strobes from a host system to provide a downlink modulated serial digital electrical waveform. At least one IR host sy... | 05/02/2000 |
| 6025946 | Transmission device and transmission method The present invention relates to a transmission device and a transmission method which can efficiently perform transmission of audio signals with infrared ray and suppress the complication of data processing in modulation and demodulation processes to the... | 02/15/2000 |
| 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 |
| 5936754 | Transmission of CDMA signals over an analog optical link A transmission system for backhauling CDMA signals from remote antennas to the centralized base station of a wireless communication system includes a laser transmitter and an optical receiver coupled to an optical fiber. Wireless signals are backhauled to... | 08/10/1999 |
| 5867292 | Method and apparatus for cordless infrared communication An infrared (IR) communication system is described in which a base unit for a cell can communicate with a plurality of infrared portable devices through distributed infrared receiver/transmitter (RT) modules over a plurality of channels using IR carrier s... | 02/02/1999 |
| 5818617 | Optical data communication and location apparatus, system and method and transmitters and receivers for use therewith An optical data communication and location apparatus for at least one location in a facility having at least one receiver at said at least one location. A plurality of portable transmitters provides optical wireless data links with the receiver. Each of t... | 10/06/1998 |
| 5585952 | Communication apparatus automatically selecting one of two operation modes A communication apparatus includes a memory. The memory stores the protocol of an ASK system and the protocol of an IrDA system. These protocols require predetermined time periods of T1 and T2 prior to establishing a connection with a station of the other... | 12/17/1996 |
| 5444439 | Data setting system for terminal units in remote supervisory and controlling system employing data transmission A data setting system for terminal units using an optical wireless signal includes in the respective terminal units a data storing device and a receiving device for the optical wireless signal and, in a data operating device separate from the terminal uni... | 08/22/1995 |
| 5321542 | Control method and apparatus for wireless data link Methods and apparatus for operating an optical communications system having at least two communicating entities (10,12). In accordance with a method of the invention a first step transmits communication link control information from a first entity to a se... | 06/14/1994 |
| 5172113 | System and method for transmitting data in an optical traffic preemption system A method of optically transmitting data from an optical emitter to a detector mounted along a traffic route is used in an optical traffic preemption system. The method allows variable data to be transmitted in a stream of light pulses by interleaving data... | 12/15/1992 |
| 5121243 | Wireless optical communication system utilizing a single optical carrier frequency A wireless optical short-range communication system adapted for use as an intercom system. The system can be used in fast food restaurants and similar commercial institutions. The communication system includes a base station to interconnect via optical co... | 06/09/1992 |
| 4959828 | Multi-channel infrared cableless communication system A system for simultaneously transmitting a plurality of audio signals into a transmission space from at least one transmission point to one or more reception points. The plurality of audio signals is inputted to an encoder. The encoder time-division multi... | 09/25/1990 |
| 4882770 | Wireless optical communication system A wireless optical short-range communication system adapted for use as an intercom system. The system can be used in fast food restaurants and similar commercial institutions. The communication system includes a base station to interconnect via optical co... | 11/21/1989 |
| 4456793 | Cordless telephone system The present key telephone system comprises cordless telephone stations (FIGS. 6 and 7) which communicate over a line-of-sight transmission end link (276 or 277). The system further comprises a central controller (101) for switching communications between ... | 06/26/1984 |
| 4402090 | Communication system in which data are transferred between terminal stations and satellite stations by infrared signals A communication system in which many terminals located in a large room are connected to a host via a plurality of satellites. Data are exchanged between terminals and satellites by infrared signals. All satellites are connected to the host by a common bus... | 08/30/1983 |
| 4090036 | Satellite communications system A satellite communications system provides automatic channel assignment without employing a dedicated signalling channel. A major station detects carrier-free forward channels and transmits on each a forward signal. A minor station hunts all available for... | 05/16/1978 |
