| Patent Number |
Title Of Patent |
Date Issued |
| 6977552 |
Impedance matching low noise amplifier having a bypass switch |
December 20, 2005 |
| An impedance matching low noise amplifier ("LNA") having a bypass switch includes an amplification circuit, a bypass switching network and a match adjustment circuit. The amplification circuit has an amplifier input and an amplifier output, and is configured to receive a radio frequency |
| 6969263 |
Electrical connector assembly |
November 29, 2005 |
| An electrical connector assembly is provided for connecting at least one electrical contact pad on a first structure with at least one electrical contact pad on an opposing second structure. The connector assembly has a body and electrical connectors extending from the body, and is mount |
| 6968214 |
Phone number replace code system and method |
November 22, 2005 |
| A processor-implemented method of placing telephone calls includes inputting a toll-free number to initiate a phone call, determining whether the mobile device is within a North American Numbering Plan (NANP) service area, upon determining that the mobile device is within a NANP service |
| 6967657 |
Light source system for a color flat panel display |
November 22, 2005 |
| A system for operating a color flat panel display (FPD) is provided that includes a color FPD, a rear light source, and a display processing device. The color FPD has an adjustable color depth and is configured to reflect ambient light. The light source transmits light through the bottom |
| 6950071 |
Multiple-element antenna |
September 27, 2005 |
| 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 section includes a monopol |
| 6946817 |
System and method for powering and charging a mobile communication device |
September 20, 2005 |
| A system for powering and charging a mobile communication device includes a processing device, a rechargeable battery, a Universal Serial Bus (USB) interface, and a charging subsystem. The rechargeable battery is configured to supply power to the processing device. The USB interface is |
| 6942500 |
Surface mountable clip suitable for use in a mobile communication device |
September 13, 2005 |
| A mobile communication device includes a printed circuit board (PCB); a radio frequency (RF) transceiver carried on the PCB; and an antenna coupled to the RF transceiver. A surface mountable antenna clip is mounted on the PCB for retaining the antenna. The clip is a metal structure havin |
| 6941349 |
System and method for pushing calendar event messages from a host system to a mobile data commun |
September 6, 2005 |
| A system and method for pushing information, such as calendar event messages, from a host system to a mobile data communication device upon sensing a triggering event is disclosed. A redirector program operating at the host system enables a user to continuously redirect calendar event |
| 6936936 |
Multifunctional charger system and method |
August 30, 2005 |
| An adapter for providing a source of power to a mobile device through an industry standard port is provided. In accordance with one aspect of the invention, the adapter comprises a plug unit, a power converter, a primary connector, and an identification subsystem. The plug unit is operat |
| 6920190 |
System and method for inverting automatic frequency control (AFC) |
July 19, 2005 |
| A system and method for inverting automatic frequency control applied to a reference signal used to process an input signal is disclosed. When receiving an input communication signal, a receiver controls the frequency of the reference signal to compensate for frequency differences betwee |
| 6919879 |
Hand-held electronic device with a keyboard optimized for use with the thumbs |
July 19, 2005 |
| A hand-held electronic device with a keyboard optimized for use with the thumbs is provided. The handheld device includes a keyboard, a display, and a processor. The keyboard is horizontally positioned symmetrically between a left edge and a right edge of a face of the hand-held messagin |
| 6915442 |
Precision-controlled duty cycle clock circuit |
July 5, 2005 |
| A clock signal duty cycle control circuit is provided that receives an incoming signal from a clock signal input source and generates an improved output clock signal having an accurately controlled duty cycle. The circuit controls the duty cycle of the output clock signal by comparing |
| 6904274 |
System and method for inverting automatic gain control (AGC) and soft limiting |
June 7, 2005 |
| A soft limiter for a signal processor includes a variable-gain amplifier, and a threshold detector. The variable-gain amplifier includes a signal input for receiving an input signal, a signal output for providing an output signal representative of the input signal, and a gain control inp |
| 6897734 |
Integral mixer and oscillator device |
May 24, 2005 |
| A device for providing the functionality of an oscillator and mixer is disclosed herein. The device uses a differential pair to provide first and second filter networks with a time varying signal. The first filer network generates an oscillating signal through the use of a generated nega |
| 6891529 |
Keyboard assembly for a mobile device |
May 10, 2005 |
| A keyboard assembly for a mobile device is provided that reduces the separation between keys by reducing the number of required dome switches. A reduction in the number of dome switches can alternatively reduce the amount of real estate taken up by dome switches on a printed circuit boar |
| 6891506 |
Multiple-element antenna with parasitic coupler |
May 10, 2005 |
| A multiple-element antenna for a multi-band wireless mobile communication device is provided. The multiple-element antenna includes a first antenna element, a second antenna element positioned adjacent the first antenna element, and a parasitic coupler positioned adjacent the first anten |
| 6888360 |
Surface mount technology evaluation board having varied board pad characteristics |
May 3, 2005 |
| This invention provides an evaluation board for evaluating one or more aspects of a surface mount technology system. In one aspect, the evaluation board has a substrate with at least one surface. A plurality of board pad patterns, each including a plurality of board pads, is formed on |
| 6875049 |
Battery connector capable of connecting multiple power consuming circuit boards |
April 5, 2005 |
| An apparatus is provided for use in a device having a battery and one or more power consuming circuit boards that are powered by the battery. The battery connector includes one or more electrical conduits and a housing. Each electrical conduit includes a battery contact, a first circuit |
| 6873317 |
Hand-held electronic device with a keyboard optimized for use with the thumbs |
March 29, 2005 |
| A hand-held electronic device with a keyboard optimized for use with the thumbs is disclosed. In order to operate within the limited space available on a hand-held electronic device, the present invention optimizes the placement and shape of the keys, preferably using keys that are o |
| 6870425 |
System and method of amplifier gain control by variable bias and degeneration |
March 22, 2005 |
| A gain control circuit that permits a variable gain amplifier circuit to operate with high input linearity and low power consumption is disclosed. The variable gain amplifier includes a standard differential bipolar transistor input circuit and a pair of degeneration transistors connecte |
| 6867763 |
Hand-held electronic device with a keyboard optimized for use with the thumbs |
March 15, 2005 |
| A hand-held electronic device with a keyboard optimized for use with the thumbs is disclosed. In order to operate within the limited space available on a hand-held electronic device, the present invention optimizes the placement and shape of the keys, preferably using keys that are o |
| 6864754 |
Integral mixer and oscillator device |
March 8, 2005 |
| A device for providing the functionality of an oscillator and mixer is disclosed herein. The device uses a differential pair to provide first and second filter networks with a time varying signal. The first filter network generates an oscillating signal through the use of a generated |
| 6856654 |
Power supply system for a packet-switched radio transmitter |
February 15, 2005 |
| An apparatus and method is disclosed which allow a limited energy source (such as a low voltage battery stack or a low current computer auxiliary device power connection) to charge a high performance capacitive device, which in turn powers a low duty-cycle, high power load circuit (such |
| 6847239 |
Frequency divider system |
January 25, 2005 |
| A frequency divider circuit for providing a divided clock signal having a frequency that is an odd integer factor less than the frequency of an incoming system clock signal. The frequency divider includes a clock generator circuit coupled to a delay circuit which operates in an active |
| 6845023 |
Universal adapter with interchangeable plugs |
January 18, 2005 |
| A universal adapter for use with a rechargeable handheld communication device includes a power module. An AC rectifier is operable to convert an AC power signal into a rectified AC power signal. A DC transformer is operable to receive the AC rectified power signal and output a DC tra |
| 6842169 |
Hand-held electronic device with multiple input mode thumbwheel |
January 11, 2005 |
| A thumbwheel input device oriented on an incline and comprising a wheel such that a first input is generated by rotation of the wheel about its axis, and a holder also having an axis of rotation and a portion thereon to receive the wheel whereby a second input is generated by rotation of |
| 6833686 |
Circuit and method of operation for an adaptive charge rate power supply |
December 21, 2004 |
| A convenient source of charging power for portable communication devices is an integral power node of a computer data bus, such as a USB (universal serial bus) port. Unfortunately, USB ports have limited power capacity, making them generally incompatible with battery charge controllers ( |
| 6828518 |
Shock absorbent roller thumb wheel |
December 7, 2004 |
| A shock absorbing roller thumb wheel is disclosed. The shock absorbing thumb wheel includes a central hub that can be secured to an electro-mechanical switch, a rim encircling the central hub, and force dispersion spokes extending from the central hub and connected to the rim. The co |
| 6825794 |
Wireless communication system using surface acoustic wave (SAW) second harmonic techniques |
November 30, 2004 |
| SAW devices such as interdigital transducers (IDTs) have been widely used in RADAR applications and as filters. An IDT produces a SAW when excited by a single electrical pulse and can be fabricated to embody a code, which code provides for a passive autocorrelation of a SAW input to the |
| 6820088 |
System and method for synchronizing data records between multiple databases |
November 16, 2004 |
| A system and method for synchronizing data records between multiple databases is provided. Each database includes data records that are modified to include at least one pair of synchronization parameters. In a two-database system including a first database and a second database, each |
| 6812897 |
Dual mode antenna system for radio transceiver |
November 2, 2004 |
| A dual mode antenna system for a wireless transceiver is provided, and includes a retractable antenna element having a first, retracted position and a second, extended position. The antenna element operates as a first type of antenna in the first position and a second type of antenna in |
| 6798869 |
Bit rate matching system and method |
September 28, 2004 |
| A method and system of matching a bit rate to a transmit bit rate used to transmit data on a data link are disclosed. A bit pattern in data received on the data link is detected using a bit rate. Where the detected bit pattern comprises one of a plurality of expected bit patterns, the bi |
| 6794852 |
System and method of battery capacity reporting |
September 21, 2004 |
| A method and system for accurately reporting battery capacity is disclosed herein. The disclosed method and system prevent the reporting of discontinuous capacity values resulting from starting or stopping recharge cycles. The disclosed method and system prevent over or under reporting o |
| 6791500 |
Antenna with near-field radiation control |
September 14, 2004 |
| An antenna and a wireless mobile communication device incorporating the antenna are provided. The antenna includes a first conductor section electrically coupled to first feeding point, a second conductor section electrically coupled to a second feeding point, and a near-field radiation |
| 6781548 |
Electrically connected multi-feed antenna system |
August 24, 2004 |
| An antenna system for a portable transceiver device comprises an antenna structure for transmitting and receiving RF signals. The antenna structure includes multiple feeding ports having a common structure fully coupling multiple antennas together. This antenna structure is made of a con |
| 6779019 |
System and method for pushing information from a host system to a mobile data communication devi |
August 17, 2004 |
| A system and method of pushing user-selected data items from a host system to a user's mobile data communication device upon detecting the occurrence of one or more user-defined event triggers is provided. The user may then move (or file) the data items to a particular folder within a fo |
| 6768377 |
Impedance matching low noise amplifier having a bypass switch |
July 27, 2004 |
| An impedance matching low noise amplifier ("LNA") having a bypass switch includes an amplification circuit, a bypass switching network and a match adjustment circuit. The amplification circuit has an amplifier input and an amplifier output, and is configured to receive a radio frequency |
| 6701378 |
System and method for pushing information from a host system to a mobile data communication devi |
March 2, 2004 |
| A system and method for pushing information from a host system to a mobile data communication device upon sensing a triggering event is disclosed. A redirector program operating at the host system enables a user to continuously redirect certain user-selected data items from the host |
| 6693477 |
Clock circuit for a microprocessor |
February 17, 2004 |
| A clock circuit comprises an analog clock element, a digital clock element, and a controller. The analog clock element is configured to generate an oscillating output. The digital clock element is configured to generate a digital clock output. The controller is configured to switch betwe |
| 6669495 |
Universal adapter with interchangeable plugs |
December 30, 2003 |
| An electrical adaptor apparatus is provided for use with an electrical device. The apparatus includes a case defining a socket. The socket has a plurality of first electrical contacts. The apparatus also includes a plurality of adaptor plugs. Each adaptor plug has a plurality of recessed |
| 6664930 |
Multiple-element antenna |
December 16, 2003 |
| 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 section includes a monopol |
| 6654593 |
Combined discrete automatic gain control (AGC) and DC estimation |
November 25, 2003 |
| An automatic gain control (AGC) and DC estimation and correction technique for wireless communication devices is provided. An AGC signal, which controls a gain applied to a received signal by a gain stage to generate a scaled signal, is assigned one of a relatively small number of values |
| 6647367 |
Noise suppression circuit |
November 11, 2003 |
| An adaptive noise suppression system includes an input A/D converter, an analyzer, a filter, and a output D/A converter. The analyzer includes both feed-forward and feedback signal paths that allow it to compute a filtering coefficient, which is input to the filter. In these paths, f |
| 6614866 |
Phase locked-loop using sub-sampling |
September 2, 2003 |
| A PLL-based frequency synthesizer is provided. In accordance with one aspect, a phase locked loop is provided that comprises a phase detector, a loop filter, a voltage controlled oscillator, and a feedback circuit. The phase detector has as inputs a reference frequency signal and a feedb |
| 6611255 |
Hand-held electronic device with a keyboard optimized for use with the thumbs |
August 26, 2003 |
| A hand-held electronic device with a keyboard optimized for use with the thumbs is disclosed. In order to operate within the limited space available on a hand-held electronic device, the present invention optimizes the placement and shape of the keys, preferably using keys that are o |
| 6611254 |
Hand-held electronic device with a keyboard optimized for use with the thumbs |
August 26, 2003 |
| A hand-held electronic device with a keyboard optimized for use with the thumbs is disclosed. In order to operate within the limited space available on a hand-held electronic device, the present invention optimizes the placement and shape of the keys, preferably using keys that are o |
| 6586993 |
Impedance matching low noise amplifier having a bypass switch |
July 1, 2003 |
| An impedance matching low noise amplifier ("LNA") having a bypass switch includes an amplification circuit, a bypass switching network and a match adjustment circuit. The amplification circuit has an amplifier input and an amplifier output, and is configured to receive a radio frequency |
| 6583601 |
Portable battery charger for a mobile device |
June 24, 2003 |
| A portable battery charger for a mobile device having a rechargeable battery includes battery contacts, a switching regulator, and a charger interface. The battery contacts are configured to receive a battery having a low-voltage value. The switching regulator is coupled to the battery |
| 6580163 |
IC chip packaging for reducing bond wire length |
June 17, 2003 |
| An integrated circuit packaging assembly for reducing the length of bond wires transmitting radio frequency signals is disclosed herein. The die is offset in the packaging to position a subset of its bond pads in close proximity to package bond pads to allow for shorter bond wires, which |
| 6578154 |
Clock duty cycle correction circuit which corrects an input clock by directly comparing the inpu |
June 10, 2003 |
| A clock signal duty cycle control circuit is provided that receives an incoming signal from a clock signal input source and generates an improved output clock signal having an accurately controlled duty cycle. The circuit controls the duty cycle of the output clock signal by comparing |
