Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7356151 | Microphone system A system remotely controls a microphone through a remote control unit. The remote control unit includes a frequency modulator that modulates a control signal. A cable conductor that is used to provide phantom power also conveys a frequency-modulated control signal. ... | 04/08/2008 |
| 7308246 | Emergency notification system and emergency notification device An emergency notification uses a normal cellular telephone terminal instead of a dedicated terminal without requiring communication using a voice. An emergency notification system has a mobile communication network including a cellular telephone terminal, an emergen... | 12/11/2007 |
| 7263373 | Sound-based proximity detector A proximity detector for use in a mobile telephone having at least a microphone and a loudspeaker operatively connected to a signal processor is presented. The proximity detector includes data processing and control modules having a module for controlling the signal... | 08/28/2007 |
| 7255437 | Eyeglasses with activity monitoring In one embodiment, eyewear having an activity monitoring capability is disclosed. Activity, such as motion, steps or distance, can be measured by an activity detector. The measured activity can then be used in providing activity-related information to a user of the ... | 08/14/2007 |
| 7248885 | Automatic/timed silencing of mobile phone from a network A method and system provides automatic/timed silencing of a mobile phone by a telecommunications network. The method has the steps of: forming a schedule of silence at a mobile phone; sending the schedule of silence to a mobile switching center; storing the schedule... | 07/24/2007 |
| 7206849 | Communication in a wireless communications network when a mobile computer terminal may be unreachable A method and apparatus for communication between a mobile computer terminal and a host computer in a system in which it is necessary for the mobile computer terminal to send a message to the host computer at a particular time. The specific time at which the mobile c... | 04/17/2007 |
| 7187948 | Personal portable integrator for music player and mobile phone A personal portable integrator is used to integrate the services of an arbitrary audio delivery device such as an MP3, CD, DVD, radio, or other media player, with the services of an arbitrary two-way communication device such as a mobile phone, or a two-way radio su... | 03/06/2007 |
| 7171116 | Provisionable keep-alive signal for physical-layer protection of an optical network A dual-output Mach-Zehnder modulator (MZM2) and configurations of optical transmitters based on the MZM2 which obviate the optical splitter that is typically used to provide keep-alive functionality in redundantly-connected, protected optical networks, SONET add-dro... | 01/30/2007 |
| 7162156 | Bi-directional single fiber optic link for data and radio frequency transmissions A data link system comprising a shelter housing sensitive radio frequency equipment and an antenna located apart from the shelter. A single fiber, bi-directional fiber optic link couples the antenna to the shelter. Both RF signals and data signals are sent across th... | 01/09/2007 |
| 7142814 | Automatic Bluetooth inquiry mode headset The present invention provides a Bluetooth enabled headset/master unit set which allows easy pairing of Bluetooth devices. The miniature headset of the present invention may be of a reduced size and weight due to the ease of pairing/authentication. Pairing of... | 11/28/2006 |
| 7142333 | System and method for wirelessly initiated document scanning and transmission A method of document scanning comprises wirelessly communicating a request, initiated by a mobile computing device, to a scanner to image a paper document into an electronic document. After imaging the paper document with the scanner to produce an electronic documen... | 11/28/2006 |
| 7120238 | Sensor-controlled telephone system A telephony system and method are adapted for selecting an operating mode of a telephony system responsive to sensor inputs. A presence detector, communicatively coupled to the telephony system, detects people within a predetermined area associated with the telephon... | 10/10/2006 |
| 7095981 | Low power infrared portable communication system with wireless receiver and methods regarding same A portable communication system provides a universal transmitter that mechanically couples to a communication device having a sound output, e.g., a cellular phone handset, and which transforms the sound output into infrared signals, e.g., pulses, for transmission to... | 08/22/2006 |
| 7092435 | Line quality monitoring apparatus and method In a line quality monitoring method of detecting a code error rate by identifying a received optical signal using different identification levels and executing bit comparison after identification, an amplitude of the signal and noise power contained in the signal ar... | 08/15/2006 |
| 7079810 | System and method for communicating with a remote communication unit via the public switched telephone network (PSTN) The present invention is generally directed to a system and method for communicating between a personal data access device and a remote communication unit. In accordance with one aspect of the invention, a device, electrically connected for communication with a publ... | 07/18/2006 |
| 7068798 | Method and system for suppressing echoes and noises in environments under variable acoustic and highly feedback conditions Method and system for canceling echoes and noises in environments with variable acoustic conditions and high feedback, such as the interior of an automotive vehicle, permitting audible communication between the occupants, comprising one/several microphone/s (1 | 06/27/2006 |
| 7061396 | Intelligent locator system A locating and monitoring system includes transmitters worn by a person, animal, or equipment to transmit an unique identification code while moving about a facility. The code is transmitted by pulse bursts at diverse times during predetermined time intervals to pre... | 06/13/2006 |
| 7031561 | Monolithic integration of micro-optics circuits and RF circuits A chip for integrating functions performed by micro-optics and RF circuits including at least one optical function module that receives an optical signal and performs at least one of a plurality of optical functions. A RF function module that receives a RF signal an... | 04/18/2006 |
| 7010332 | Wireless headset with automatic power control A wireless headset for use with a separate communications device, such as a cellular telephone, includes automatic on/off capabilities to maximize battery life. By detecting a user's interaction, such as picking up the headset or placing it upon the user's body, the... | 03/07/2006 |
| 6970097 | Location system using retransmission of identifying information A location system and method for determining the location of a tagged item in a facility. In one embodiment, the location system includes a plurality of room transmitters designed to be located throughout the facility. Each room transmitter has a unique signature. T... | 11/29/2005 |
| 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 |
| 6925315 | Telephone handset with thumb-operated tactile keypad An improved cell phone arrangement has a centrally located orientation key, for referencing a location tactilely via the user's thumb, and the dialing keys arranged in a substantially circular arrangement around the orientation key, in an array having a relatively l... | 08/02/2005 |
| 6925296 | Sound-based proximity detector A proximity detector for use in a mobile telephone having at least a microphone and a loudspeaker operatively connected to a signal processor is presented. The proximity detector includes data processing and control modules having a module for controlling the signal... | 08/02/2005 |
| 6910447 | Pet communication apparatus A pet communication apparatus for allowing a user to communicate with a pet. The pet communication apparatus includes a housing member being designed for being selectively positioned on a support surface. A processing assembly is positioned in the housing member. Th... | 06/28/2005 |
| 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 |
| 6901240 | Communication system When a line for communication of audio signals between first and second portable-telephone devices through a first portable-telephone base station, a second portable-telephone base station and a portable-telephone line network has been connected, IP addresses are ex... | 05/31/2005 |
| 6754483 | Method and system for generating a secure wireless link between a handset and base station Methods and apparatus for establishing secure wireless links between a handset and a base station in cordless telephone systems are described. A method of generating a secure wireless link between a handset and a base station includes initiating a linking procedure,... | 06/22/2004 |
| 6700966 | System, apparatus and method for processing calls based on place detection of moving personnel or objects In ordinary telephones, a communication partner is called without considering the location of the communication partner and whether or not the communication partner is busy. In the present invention, it is determined whether or not the communication partn... | 03/02/2004 |
| 6694125 | System and method for extending the range of a base unit A system and method for extending the range of a base unit is disclosed. The system can include repeaters and/or network decoders, each of which is housed in a network module. The network module includes a first portion for insertion into a powered outlet... | 02/17/2004 |
| 6681116 | Communication system A communication system comprising a first communication node connected to a second communication node by a wireline for integrating parallel layers of wireless communications for exchange with users. The first communication node comprising a free-space la... | 01/20/2004 |
| 6600899 | Method and system for transmitting short messages to a portable IR transceiver In a method and system for effecting bi-directional IR data communication between an object transceiver and a reader, the object transceiver transmits successive data packets to the reader, and upon termination of a transmission of each data packet, opens... | 07/29/2003 |
| 6574482 | Dual RF/IR communication device and method of use thereof A communication device including an RF transmitter mounted in conjunction with an IR transmitter allowing data to be transmitted by RF as well as by IR. Such a device may be a portable badge worn by moving personnel to transmit IR and RF signals to one of... | 06/03/2003 |
| 6570692 | Communication network based on the atmospheric transmission of light 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... | 05/27/2003 |
| 6501576 | Wireless data transfer using a remote media interface A system and method for wireless data transfer between a computer and a telephone line using a remote media interface (RMI). The computer bidirectionally transfers the data to the RMI using an infrared (IR) signal. The RMI acts as an interface between the... | 12/31/2002 |
| 6421426 | Infrared wireless headset system A full duplex infrared communication system suitable for use in connection with a telephone system is disclosed. The communication system includes a base station and a remote wireless set. High quality audio is provided through use of an FM sinusoidal cur... | 07/16/2002 |
| 6360090 | Method and apparatus for receiving infrared signals with improved noise immunity Disclosed is a method and apparatus for receiving infrared signals that is better able to receive a data signal in the presence of a noise signal. The method according to the present invention involves bandwidth filtering an incoming signal that includes ... | 03/19/2002 |
| 6256296 | Network communications link A wireless communications link, including a base unit and at least one remote unit. The base unit is connected to a wired communications line, so as to receive electrical signals from the line and transmit diffuse infrared radiation, modulated responsive ... | 07/03/2001 |
| 6208840 | Handy phone with an infrared communication capability A handy phone capable of performing infrared communication with an external apparatus is disclosed. As soon as the phone searching for the other station at the beginning of communication detects data via its infrared receipt section, it alerts the user of... | 03/27/2001 |
| 6208867 | Portable terminal system, option apparatus for portable terminal unit, and method for connecting portable terminal unit and option apparatus for portable terminal unit A portable terminal system is arranged by an option apparatus 1 for a portable terminal unit and a portable terminal unit. The option apparatus 1 for the portable terminal unit communicates with a base station by using electromagnetic waves by a first rad... | 03/27/2001 |
| 6128512 | Cellular communication system with dedicated repeater channels A cellular communication system in which dedicated repeater controller transceivers are included in base stations and wireless base stations. The repeater controller transceivers are configured to operate on a different channel as compared to communicatio... | 10/03/2000 |
