Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7574187 | Battery charger antenna, method and device incorporating the same A method for providing battery charge current to a portable electronic device having a rechargeable battery. The method includes the steps of providing a power adaptor which connects to a power supply and converts power from the power supply into a battery charge cu... | 08/11/2009 |
| 7392029 | Method and apparatus for true diversity reception with single antenna A system for wireless communication, particularly for receiving communication signals, said system comprising: A main antenna structure (330), said antenna structure adapted to receive a communication signal (325a) as a first internal signal; an... | 06/24/2008 |
| 7373169 | Earphone antenna and portable radio equipment provided with earphone antenna An earphone antenna includes an audio signal transmission path formed by connecting a first shield wire of a coaxial cable to a ground, connecting a central conductor of the coaxial cable to a pair of first signal lines of an earphone cable via a capacitor which exh... | 05/13/2008 |
| 7369089 | Antenna with multiple-band patch and slot structures A multiple-band antenna having a plurality of operating frequency bands is provided. The antenna includes a plurality of structures configured for operation in respective ones of the plurality of operating frequency bands, and a plurality of structures configured fo... | 05/06/2008 |
| 7348285 | Fabric and yarn structures for improving signal integrity in fabric-based electrical circuits Coaxial and twisted pair conductive yarn structures reduce signal crosstalk between adjacent lines in woven electrical networks. A coaxial conductive yarn structure includes an inner conductive yarn having a plurality of conductive strands twisted together. An outer... | 03/25/2008 |
| 7302240 | Communication apparatus A communication apparatus has an A/D converter which converts an analog signal which was received, into a digital signal, a converter which converts a reception signal so as to enable handling of phase information, a carrier detector which detects presence or absenc... | 11/27/2007 |
| 7292705 | Antenna device An antenna device disclosed herein is integrated with an earphone for generating sound from an ear receiver, and connected to a wireless equipment through a connector to transmit an audio signal applied from the wireless equipment to the connector through a pluralit... | 11/06/2007 |
| 7256741 | Antenna with multiple-band patch and slot structures A multiple-band antenna having a plurality of operating frequency bands is provided. The antenna includes a plurality of structures configured for operation in respective ones of the plurality of operating frequency bands, and a plurality of structures configured fo... | 08/14/2007 |
| 7180460 | Antenna with power matching circuit A mobile antenna includes a center-fed, broadband, dipole radiator, and a coupler assembly for mounting the dipole radiator to a mount. A power matching circuit is connected between the dipole radiator and the coupler assembly to maintain an effective balance of cur... | 02/20/2007 |
| 7181164 | Battery modem using short range wireless technology The present invention is directed to a battery modem using Short Range Wireless technology. A battery modem using a short range wireless technology in a data communication apparatus capable of performing wired/wireless data communication depending on whether a batte... | 02/20/2007 |
| 7164903 | Integrated N-way Wilkinson power divider/combiner An integrated N-way Wilkinson power divider is described. In one embodiment, the N-way Wilkinson power divider uses a conductor layer with a cross-over (or cross-under) resistor insulated from the conducting layer by an insulating bridge. In one embodiment, the widt... | 01/16/2007 |
| 7053836 | Circuit board antenna for LAN communication A antenna for improving the data transmission efficiency of the wireless network by using the micro strip and Gama matching theories includes: a dielectric material, two radiating portions locating on the dielectric material, a ground surface locating on the dielect... | 05/30/2006 |
| 7050763 | Method and device for transferring a signal from a signal source to a signal sink in a system The system has at least two electronic units between which signals are transferred from a first electronic unit and a second electronic unit. The first electronic unit has a signal source. The second electronic unit has a signal sink. A signal to be transferred is c... | 05/23/2006 |
| 7023387 | Antenna with multiple-band patch and slot structures A multiple-band antenna having a plurality of operating frequency bands is provided. The antenna includes a plurality of structures configured for operation in respective ones of the plurality of operating frequency bands, and a plurality of structures configured fo... | 04/04/2006 |
| 6950071 | Multiple-element antenna A multiple-element antenna is provided that includes a monopole portion and a dipole portion. The monopole portion has a top section, a middle section, and a bottom section. The middle section defines a recess between the top and bottom sections, and the bottom sect... | 09/27/2005 |
| 6272328 | System for providing audio signals from an auxiliary audio source to a radio receiver via a DC power line A system is provided for detecting the presence of an FM-modulated audio signal from an auxiliary source, and operating a switch to provide that audio signal to a tuner in lieu of the radio frequency signal received at the tuner antenna. The tuner can be ... | 08/07/2001 |
| 6104920 | Radio communication device antenna arrangements The present invention relates to antenna arrangements for radio communications devices including cordless phone handsets and base stations. The handset includes an antenna arrangement incorporating one or more batteries as part of a monopole structure. Th... | 08/15/2000 |
| 5893023 | Satellite receiver including operating voltage supply arrangement suitable for different antenna assemblies A satellite receiver which is capable of being connected to different antenna assemblies which require different operating voltages, includes a switch mode power supply which supplies the different operating voltages. A microprocessor controls the duty cy... | 04/06/1999 |
| 5757177 | Infrasonic frequency resonant circuit and method for use thereof An infrasonic frequency resonant circuit and method for use thereof. An electric power distribution system is employed both as antenna for ISF signals and as a source of inductive reactance for a resonant circuit tuned to a band within the ISF spectrum. A... | 05/26/1998 |
| 5361405 | Aircraft band radio receiver which does not radiate interfering signals A broadband radio receiver monitors transmissions over a broadband of frequencies, and especially over the aircraft band, between aircraft and control towers or between the cockpit and ground stations at an airport. The radio utilizes an earphone having a... | 11/01/1994 |
| 4625212 | Double loop antenna for use in connection to a miniature radio receiver An antenna having an antenna aperture area and an antenna reactance comprises a first antenna element (31) defining a first aperture area and a first reactance and a second antenna element (32) connected in parallel to the first antenna element to put a m... | 11/25/1986 |
| 4590614 | Dipole antenna for portable radio A dipole antenna for a portable radio is contained completely within the insulated housing (10) of the transceiver. The dipole antenna is formed as two conductive surfaces (12, 13) electrically isolated from each other but disposed on the same printed cir... | 05/20/1986 |
| 4577195 | Miniaturized mobile radio receiver with dipole antenna The miniaturized mobile radio receiver has a straight dipole antenna whose wires run along the edge of the printed-circuit board(s) of the radio receiver and are connected at their outer ends to conductive areas. The conductive strips on the circuit board... | 03/18/1986 |
| 4507646 | Radio communication system A paging system for use in a limited area such as an office, a factory building, a hotel, or other public building wherein the existing electrical supply network is used as the antenna of either the transmitter or the receiver. The electrical supply netwo... | 03/26/1985 |
| 4491843 | Portable receiver with housing serving as a dipole antenna The antenna for equipping a portable receiver comprises a metal plate and a metal box containing the receiver components and which is provided with a surface facing the metal plate, the metal box behaving in the manner of a virtual plate positioned half-w... | 01/01/1985 |
| 4369521 | Radio receiving apparatus using headphone connector cable as an antenna Radio receiving apparatus having a receiving unit including an RF stage and a signal processing state, the latter producing an audio frequency signal in response to the RF signal supplied to the RF stage. The receiving unit also includes a jack having at ... | 01/18/1983 |
| 4271534 | Microwave receiver A microwave receiver is constituted by an antenna having a reflector and a primary radiator, and a converter having an unbalanced input terminal. A core conductor projected from the unbalanced terminal of the converter is extended inside the reflector thr... | 06/02/1981 |
| 4030034 | Overdrive protection circuit for power line carrier systems and the like In previous power line carrier systems, the gain of a broadband frequency amplifier was controlled by a feedback loop that utilized the magnitude of a pilot frequency signal. When the amplifier was turned on or when the gain control loop was switched into... | 06/14/1977 |
