Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 8014820 | Baseband / RFIC interface for high throughput MIMO communications Analog signal paths are utilized between a baseband processor and a radio front end to support high throughput communications for a multiple in multiple out radio transceiver that support communications over two or more antennas. Specifically, analog differential I ... | 09/06/2011 |
| 7940506 | Automated AC line filter and surge suppression apparatus and method An automated AC line filter and surge suppression apparatus 100 having an inductive current sense loop (ICSL) circuit 10 for sensing inductive current at a load and controlling the application of AC line filter 112 to an AC power line to the loa... | 05/10/2011 |
| 7848709 | Multi-mode crystal oscillator In one embodiment of the present invention, two crystal oscillator circuits are coupled in parallel to provide differing performance according to mode. Generally, a first circuit provides low phase noise and high accuracy while a second circuit provides greater phas... | 12/07/2010 |
| 7860188 | Digital modulator for a GSM/GPRS/EDGE wireless polar RF transmitter A digital modulator in a radio transmitter includes circuitry for switching between Gaussian Minimum Shift Keying (GMSK) and Phase-Shift Keying (PSK) while maintaining spectral mask requirements. The digital modulator of the present invention includes both GMSK and ... | 12/28/2010 |
| 7841302 | Electronic fence capable of guiding animals to return An electronic fence system capable of guiding animals under training to return to a predetermined restricted area. The electronic fence generates electric shocks as the animals attempt to leave the predetermined restricted area and restrains the electrical shock whe... | 11/30/2010 |
| 7835324 | Resource optimization in a wireless IP network A method and apparatus in accordance with the present invention provide for releasing resources dedicated to a dormant mobile station in a region served by a first network access server that has migrated to in a region in an IP network served by a second network acc... | 11/16/2010 |
| 7801044 | TCP acknowledge for aggregated packet A method and apparatus according to one embodiment of the invention are operable to detect the accumulation of redundant ACKs (acknowledgment signals) in a queue for streaming data packet units, and to delete a portion of the redundant ACKs to improve transmission e... | 09/21/2010 |
| 7787527 | Precise dynamic hysteresis An analog comparator circuit with associated hysteresis logic operably disposed to provide a logic switching mechanism based upon an input voltage level includes a voltage comparator block operably disposed to receive a voltage input signal at a positive terminal of... | 08/31/2010 |
| 7779301 | Computer chip set having on board wireless interfaces to support test operations A method and apparatus are provided for an embedded wireless interface that is embedded in, for example, one of an input and output controller device for controlling input and output communications with off-board devices, within a memory controller device and a proc... | 08/17/2010 |
| 7764133 | Time based predictive algorithm system for a crystal oscillator A system and method include receiving an external reference signal and generating first temperature control commands to maintain a constant ambient temperature for a crystal oscillator using a first temperature control system. The method further includes generating ... | 07/27/2010 |
| 7751359 | Call origination in a CDMA legacy MS domain using SIP A system and a method in a wireless network utilizing session initiation protocol (SIP) for call control. The SIP payload (SDP) contains a list of voice codecs to coordinate the selection of voice bearer resources (between a calling party and a called party) such th... | 07/06/2010 |
| 7742752 | Passive filter selectivity with precise resolution for integrated circuit radios An integrated circuit radio transceiver and method therefor includes a parallel resistive circuit that provides high resolution to resistive circuitry in a hardware efficient manner for use in a plurality of applications including active filters requiring a precise ... | 06/22/2010 |
| 7738652 | System and method for preventing telephone line blocking by a modem A modem includes modem circuitry and modem software that is executed by a processor. When the modem circuitry detects that the modem software is nonfunctional, it enters an on-hook state to prevent blocking of a coupled telephone line. A nonfunctional state of the m... | 06/15/2010 |
| 7733981 | Direct conversion RF transceiver for wireless communications A single chip radio transceiver includes circuitry that enables received wideband RF signals to be down converted to base band frequencies and base band signals to be up converted to wideband RF signals prior to transmission without requiring conversion to an interm... | 06/08/2010 |
| 7714846 | Digital signal processed touchscreen system Digital signal processed touchscreen system. The invention employs amplitude ramped signals across a touchscreen. The pattern to which the amplitude ramped electric signals are provided may be located on the surface of the touchscreen, or alternatively on the backsi... | 05/11/2010 |
| 7702291 | Radar detection from pulse record with interference A single chip radio transceiver includes circuitry that enables detection of radar signals to enable the radio transceiver to halt communications in overlapping communication bands to avoid interference with the radar transmitting the radar pulses. A method in a rad... | 04/20/2010 |
| 7701382 | Radar detection circuit for a WLAN transceiver A single chip radio transceiver includes circuitry that enables detection of radar signals to enable the radio transceiver to halt communications in overlapping communication bands to avoid interference with the radar transmitting the radar pulses. The radio transce... | 04/20/2010 |
| 7668514 | Analog received signal strength indication in an RF transceiver An integrated circuit radio transceiver and method therefor comprises a receiver front end that further includes a plurality of in-phase and quadrature phase receive processing block operable at first and second frequency bands wherein each of the receive processing... | 02/23/2010 |
| 7650132 | Low noise amplifier (LNA) gain switch circuit A circuit is formed to steer current in and out of an inductive load in a manner that enables an amplifier to provide a plurality of gain steps without modifying an LC time constant for the circuit and, therefore, without modifying the tuning or frequency of oscilla... | 01/19/2010 |
| 7647051 | Call re-routing upon cell phone docking A method and apparatus are provided for call setup in a communication network that comprises at least one mobile station to facilitate the hand-off of a wireless headset from a mobile station that has been docked to a landline base unit that includes a radio front e... | 01/12/2010 |
| 7634241 | MIMO radio interfaces A receiver front end includes a plurality of in-phase and quadrature phase receive processing blocks operable at first and second frequency bands and further includes a plurality of filtering and amplification blocks disposed within a corresponding ingoing signal pa... | 12/15/2009 |
| 7623985 | Method and apparatus for a web based punch clock/time clock A system and method for building GUI screen screens for a time keeping and expense tracking system includes a time keeping and expense tracking (TKET) server that includes computer instructions that define logic for building GUI screen screens according to user defi... | 11/24/2009 |
| 7620371 | Transmitter signal strength indicator A single chip radio transceiver includes circuitry that enables received wideband RF signals to be down-converted to baseband frequencies and baseband signals to be up-converted to wideband RF signals prior to transmission without requiring conversion to an intermed... | 11/17/2009 |
| 7616068 | Frequency synthesizer for integrated circuit radios An integrated circuit radio transceiver and method therefor includes capacitive loop filter with selectable capacitive elements that are operable to adjust a signal level provided to a voltage controlled oscillator to control a frequency of an output signal of the o... | 11/10/2009 |
| 7602722 | Mobile assisted fast scheduling for the reverse link A wireless communication network is able to perform fast reverse link scheduling by providing data to a user terminal to enable it to select parameters that a base station is to use when scheduling a reverse link transmission. The user terminal that is in hand-off a... | 10/13/2009 |
| 7593692 | Radar detection circuit for a WLAN transceiver A single chip radio transceiver includes circuitry that enables detection of radar signals to enable the radio transceiver to halt communications in overlapping communication bands to avoid interference with the radar transmitting the radar pulses. One design goal, ... | 09/22/2009 |
| 7587224 | Reconfigurable topology for receiver front ends The method and apparatus of the present invention provide for a configurable radio front end topology that allows selectable operation in a single balanced mode and in a double balanced mode of operation. Logic associated with a baseband processor determines whether... | 09/08/2009 |
| 7587222 | Baseband / RFIC interface for high throughput MIMO communications Analog signal paths are utilized between a baseband processor and a radio front end to support high throughput communications for a multiple in multiple out radio transceiver that support communications over two or more antennas. Specifically, analog differential I ... | 09/08/2009 |
| 7580344 | Home phone line networking enhancements for multiple dwelling unit environments A Home Phoneline system operating within a Multiple Dwelling Unit includes a Home Phoneline Access Multiplexer (HPAN) that services a plurality of Home Phoneline networks, each including at least one Home Phoneline station. The HPAN synchronizes upstream and downstr... | 08/25/2009 |
| 7570926 | RF transceiver with compact stacker mixer design for multiple frequency conversion A single chip radio transceiver includes circuitry that enables received wideband RF signals to be down-converted to baseband frequencies and baseband signals to be up-converted to wideband RF signals prior to transmission without requiring conversion to an intermed... | 08/04/2009 |
| 7570707 | Digital delay element for delay mismatch cancellation in wireless polar transmitters A circuit and method therefor provides programmable digital delay that is produced to introduces a delay in either an envelope or a phase signal path of an RF polar transmitter in order to eliminate the delay mismatch between the two paths. For two signal paths, a f... | 08/04/2009 |
| 7570187 | Technique for improving modulation performance of translational loop RF transmitters A transmit signal generated by the baseband processor in a translational loop type RF transmitter is “pre-distorted” so as to counter act magnitude distortion and group delay variation imposed by a narrow PLL signal filter. The pre-distortion occurs in two steps... | 08/04/2009 |
| 7558537 | Modified preamble for programmable transmitter A programmable transmitter generates a frame preamble to train a receiver with respect to a communication link format that corresponds to a transmission mode wherein the transmission mode may comprise transmitting the communication link over one or more antennas. Ge... | 07/07/2009 |
| 7557758 | Very high frequency dielectric substrate wave guide A radio transceiver device includes circuitry for radiating electromagnetic signals at a very high radio frequency both through space, as well as through wave guides that are formed within a substrate material. In one embodiment, the substrate comprises a dielectric... | 07/07/2009 |
| 7545856 | Current mode phase shifter, mixer and amplifier An integrated circuit radio transceiver includes a phase shift block that is operable to produce a phase shifted current signal at an output of the phase shift block and a mixer with a low input impedance that is operable to produce a phase and frequency shifted out... | 06/09/2009 |
| 7545855 | Phase shifter and current mode mixer An integrated circuit radio transceiver comprises an integrated phase shift mixer for generating a phase and frequency shifted output signal to at least a portion of one of a transmitter or receiver front end. The integrated phase shift mixer includes a phase shift ... | 06/09/2009 |
| 7545795 | Method for identification using bluetooth wireless key A Bluetooth host solves the aforementioned problems by evaluating a Bluetooth service provider server ID and by determining which of a plurality of access IDs map to the server ID and, correspondingly, providing a Bluetooth access ID that corresponds thereto. Accord... | 06/09/2009 |
| 7070365 | Drill bit assembly for bomb deactivation and other applications A drill bit assembly is formed to drill into an object while reliably conducting a fluid onto a point being drilled and subsequently into the object being drilled includes a sleeve that is bored and threaded and cut flush to substantially mate with the outside surfa... | 07/04/2006 |
| 6978708 | Self-contained mobile chassis for bomb deactivation A bomb deactivator is formed in a self-contained unit that is able to deactivate a bomb by rendering it inert and then, in one embodiment of the invention, by cutting it into a plurality of pieces with a vertically adjustable band saw. The bomb deactivator includes ... | 12/27/2005 |
| 7539162 | Walsh code management in a code division multiple access cellular wireless communication system A cellular wireless communication system and method of operation manages Walsh codes in order to ensure that sufficient Walsh codes are available to prevent call blocking and to support additional hand-off operations. In an initial operating condition, the cellular ... | 05/26/2009 |
