A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 8078102 | Cable system with active RF device powered by RF energy converted to DC power, and associated method A cable system comprises a main line carrying first RF signals for a plurality of subscribers, and a subscriber line coupled with the main line and carrying the first RF signals between the subscriber's facility and the main line and also carrying second RF signals ... | 12/13/2011 |
| 7881664 | Personal wireless communication device connectivity arrangement within an RF restricted environment The present invention comprises a docking system for connecting a portable communication device to a further signal transmission line. The docking system may be arranged within a workstation such as a desk or a tray. The system may also envelope a room in a building... | 02/01/2011 |
| 7764926 | Communication relaying apparatus, communication relay, and controlling method A wide area network is constructed by connecting a plurality of bases to a multipoint switching apparatus. Each base has a certain contracted communication band. If a packet is received from a first base having a higher contracted communication band and the packet i... | 07/27/2010 |
| 7412208 | Transmission system for transmitting RF signals, power and control signals via RF coaxial cables A transmission system for RF signals, power and control signals over RF coaxial cables is disclosed. A coaxial cable line interconnects two devices, such as an instrument and a remote coupler. A control signal (e.g., data bit) and RF signals are multiplexed onto the... | 08/12/2008 |
| 7403742 | Multi-band cellular service over CATV network A CATV network is modified with a secondary transmission (CBP) by adding filters to separate modified mobile-communications frequencies. A CATV terminal can be routed to cellular network by way network coupling devices (NCD). ... | 07/22/2008 |
| 7400858 | Radiative focal area antenna transmission coupling arrangement The present invention comprises a docking system for connecting a portable communication device to a further signal transmission line, The docking system may be arranged within a workstation such as a desk or a tray, The system may also envelope a room in a building... | 07/15/2008 |
| 7391332 | Radiation information management device and communication device A radiation information management device comprises a measuring unit, a comparing unit, and a management information generating unit. The measuring unit measures unwanted radio wave radiation radiated from a balanced transmission line. The comparing unit compares a ... | 06/24/2008 |
| 7376385 | Repeaters sharing a common medium for communications A system for communications on a bi-directional medium includes a first repeater, a second repeater, a third repeater and a fourth repeater, each of which is coupled to the medium. The first repeater and the second repeater communicate with each other on a first ban... | 05/20/2008 |
| 7319862 | Block-based encoding and decoding information transference system and method Methods, apparatuses, and systems enabling an information exchange system allowing for the transmission of a message carrier containing at least one message code along with video and television data, as well as subsequent capture and decoding of the message carrier ... | 01/15/2008 |
| 7315564 | Analog signal separator for UWB versus narrowband signals A system, method, and computer program product for removing “narrowband” interference from a broader spectrum containing a UWB signal, in a receiver of the UWB signal. The RFI is extracted from a broader spectrum to remove interference from the UWB signal, by em... | 01/01/2008 |
| 7310497 | Radio communication repeater The invention proposes a repeater designed for indoor transmissions. The useful frequency band is split into two frequency bands and the repeater amplifies the signals from one of the bands and translates them to the other band. The transposition of frequency bands ... | 12/18/2007 |
| 7286812 | Coupling between power line and customer in power line communication system Apparatus for coupling communication signal modulated radio frequency signals between an electrical power distribution line and the electrical power wiring at a customer's premises which includes a first transceiver for transmitting and receiving electromagnetic ene... | 10/23/2007 |
| 7283020 | Signal extracting arrangement A base station in a mobile communication network, includes at least one transmission line for transmitting a radio frequency signal. Each transmission line includes a coupling hole. A two-port coupled line includes one or more coupling holes. Each transmission line ... | 10/16/2007 |
| 7277727 | System and method for processing a signal A system and method for receiving a communication signal includes a timing source that generates a stable timing signal and a stabilized local oscillator that receives the stable timing signal and uses the stable timing signal as an input to generate a stabilized os... | 10/02/2007 |
| 7272362 | Multi-sector in-building repeater A multi-sector in-building repeater, including: a master transmitting unit for receiving multi-sector signals of a carrier from a base station, mixing the multi-sector signals with different transmission intermediate frequency signals, and outputting mixed multi-sec... | 09/18/2007 |
| 7265620 | Wide-band high-gain limiting amplifier with parallel resistor-transistor source loads An amplifier has a wide bandwidth and a high gain by using parallel loads. Each load has a load resistor and a load p-channel transistor in parallel. The drain voltages of differential n-channel transistors can be set by the load resistors, while switching current i... | 09/04/2007 |
| 7155257 | Communication station with automatic cable loss compensation A wireless communications systems employing code-division multiple access information transmission techniques includes a transmission facility having ground-based transmission and reception electronic equipment, a remotely located RF power amplifier, an antenna, and... | 12/26/2006 |
| 7142818 | Systems and methods for reducing radio receiver interference from an on-board avionics transmitter Systems and methods for reducing interference in an enhanced radio receiver from a transmitter when both are located in the same aircraft are provided. The enhanced radio receiver detects and attenuates a signal from the transmitter, without attenuation or interfere... | 11/28/2006 |
| 7093276 | CATV trunk amplifier, upward signal amplifier, and bi-directional CATV system In a CATV trunk amplifier, a downward signal input to an input terminal from the center equipment side is input to a downward amplifying circuit via a first filter and a second filter. The amplified downward signal is output to the terminal device side via the secon... | 08/15/2006 |
| 7085530 | Dynamic capacity allocation of in-building system An apparatus for wireless communication, including a plurality of slave transceivers spatially separated from one another within an enclosed region. Each of the slave transceivers is adapted to receive a reverse radio frequency (RF) signal generated by a mobile tran... | 08/01/2006 |
| 7069524 | Method and device for analyzing a network of conductors To analyze a network of conductors, especially an electrical power supply network, it is planned to measure the spectral (49) and temporal (50) nature of a signal available at a node of the network. An image (49–51) representing this state is ... | 06/27/2006 |
| 7061891 | Method and system for a remote downlink transmitter for increasing the capacity and downlink capability of a multiple access interference limited spread-spectrum wireless network The present invention relates to a system and method for extending the coverage area and communication capacity of a spread-spectrum based wireless network. The system comprises a unique dual-scale, asymmetrical cellular architecture for a wireless network, wherein ... | 06/13/2006 |
| 7047555 | In-building CATV system, down-converter, up-converter and amplifier In order to correctly perform frequency conversion without using a pilot signal from an external system in a CATV system in which an upward signal is converted to a high frequency in-building upward signal using an up-converter and the in-building upward signal is c... | 05/16/2006 |
| 7042351 | Data communication over a power line Data signals are communicated between a power line and a computer, wherein the power line provides power to the computer via a distribution transformer and the computer is in communication with a wireless communication path. A first data signal is communicated with ... | 05/09/2006 |
| 7039357 | Diversity coverage A method for wireless communication, including positioning a first plurality of slave transceivers within a region and positioning a second plurality of slave transceivers within the region in positions spatially separated from the positions of the first plurality o... | 05/02/2006 |
| 7024157 | Local area network computer system utilizing radiating transmission line A radio frequency communication system utilizing a radiating transmission line for communicating data signals is disclosed. The data signals convey digital data to remotely located data devices, including computers, equipment control systems and digital video camera... | 04/04/2006 |
| 7016697 | Controlling multiple modems in a wireless terminal using dynamically varying modem transmit power limits A mobile wireless terminal (MWT) includes multiple wireless modems. The multiple modems have their respective transmit outputs combined together to produce an aggregate transmit output. The multiple modems can concurrently transmit data in a reverse link direction a... | 03/21/2006 |
| 7016332 | Method and system for a remote downlink transmitter for increasing the capacity of a multiple access interference limited spread-spectrum wireless network The present invention relates to a system and method for extending the coverage area and communication capacity of a spread-spectrum based wireless network. The system comprises a unique dual-scale, asymmetrical cellular architecture for a wireless network, wherein ... | 03/21/2006 |
| 7006461 | Method and system for a channel selective repeater with capacity enhancement in a spread-spectrum wireless network The present invention relates to a system and method for extending the coverage area and communication capacity of a spread-spectrum based wireless network through the use of intelligent repeaters. The system comprises a wireless communication network augmented with... | 02/28/2006 |
| 7006553 | Analog signal separator for UWB versus narrowband signals A system, method, and computer program product for removing “narrowband” interference from a broader spectrum containing a UWB signal, in a receiver of the UWB signal. The RFI is extracted from a broader spectrum to remove interference from the UWB signal, by em... | 02/28/2006 |
| 6976561 | Elevator system having terminals with wireless transmitting/receiving unit An elevator system in which a car travels upward and downward among a plurality of floors. The elevator system includes terminals each having a wireless transmitting/receiving unit. One of the terminals is correspondingly provided for at least one of the plurality o... | 12/20/2005 |
| 6973328 | Millimeter wave band transmitter, millimeter wave band receiver and millimeter wave band communication apparatus carrying out radio communication in millimeter wave band region A millimeter wave band communication apparatus includes a millimeter wave band transmitter receiving a plurality of input modulation signal waves to transmit a millimeter wave band multiplex signal wave, and a millimeter wave band receiver receiving the transmitted ... | 12/06/2005 |
| 6965773 | Virtual cooperative network formed by local clients in zones without cellular services A method and system for forming a virtual network. The method comprises the steps of providing each of a plurality of mobile objects with a transceiver, and transmitting a cellular/radio signals from a source. At least a first of the mobile objects is located in an ... | 11/15/2005 |
| 6961363 | Frequency look-ahead and link state history based scheduling in indoor wireless pico-cellular networks A method and apparatus of combating the problem of interference in master-slave time division duplex indoor wireless networks based on standards, such as the Bluetooth™ standard, is proposed. The method involves a frequency look-ahead scheme in frequency hopping s... | 11/01/2005 |
| 6958680 | Power line communication system and method of using the same The last portion of the electrical distribution system is used to provide high-speed communications to residential homes. An aggregation point interfaces a medium voltage power line with a point-of-presence, and a power line bridge enables flow of communications sig... | 10/25/2005 |
| 6943620 | Delta-sigma amplifiers with output stage supply voltage variation compensations and methods and digital amplifier systems using the same A delta-sigma modulator for driving an output stage is disclosed. The delta-sigma modulator operates between first and second voltages and includes a loop filter, a quantizer, and a feedback loop coupling an output of the quantizer and an input of the loop filter. T... | 09/13/2005 |
| 6933835 | Data communication over a power line A signal is received from a first portion of a power line and at least a portion of the signal is converted to a non-electrically conducting signal. The non-electrically conducting signal may be communicated to a non-electrically conductive communication path. In th... | 08/23/2005 |
| 6904280 | Communication system with mobile coverage area Systems and methods are disclosed for establishing and utilizing a mobile communication system having a mobile communication coverage area. The mobile communication system includes a plurality of mobile communication devices or units and a mobile base. The mobile ba... | 06/07/2005 |
| 6885846 | Low power wireless network A network of electronic devices such as computers (50) and/or calculators (36, 38) uses low power communication to transmit wireless signals through a distributed antenna system (40). The distributed antenna system may be formed in conjunction w... | 04/26/2005 |
| 6868275 | Method and configuration for transmitting data in a motor vehicle A method for extracting a constant part and a variable part from a data signal that is determined. The values that are extracted in this way are transmitted with different timing over a transmission link that is present. Depending on the bandwidth of the composite s... | 03/15/2005 |