| Patent Number |
Title Of Patent |
Date Issued |
| 7580725 |
Intelligent wireless device mode changing device and method |
August 25, 2009 |
| A device, method and computer readable medium for configuring settings of a device, such as a wireless device (400), based upon detection of nearby surfaces. The device includes a detection signal generator (330, 334, 338) and a detection signal receiver (332, 336). Detection signals |
| 7499733 |
Mobile communication device and method of hibernating and prebooting same to reduce start up tim |
March 3, 2009 |
| A mobile communication device (100) includes a volatile memory (110) and a non-volatile memory (112). Instruction code for operating the mobile communication device is permanently stored in the non-volatile memory, and copied to the volatile memory for execution. The mobile communication |
| 7486044 |
Light detection power system and method for same |
February 3, 2009 |
| The invention concerns a light detection power system (105). The system can include a solar cell charging circuit (120) having at least one solar cell (116) in which the solar cell charging circuit can provide power to a power source (114), a lighting circuit (122) that receives power fr |
| 7449862 |
Method and apparatus for charging a battery using a threshold to cease charging |
November 11, 2008 |
| A device (102) contains a battery (116) which is recharged under control of a charge controller (112). An external power supply (104) provides charging current and voltage (106). A linear regulator (110) regulates the raw voltage provided by the external power supply. The device (102) |
| 7274169 |
Method and apparatus for reminding a user of an unattended device in a vehicle |
September 25, 2007 |
| A device (100) has a charging system (102) for coupling to a charger (103) operating in a vehicle, and a processor coupled to the charging system. The processor is programmed to detect (202) a charging state while a user of the device is operating the vehicle, and detect (204-208) an act |
| 7268799 |
Multi-function device illumination control system and method |
September 11, 2007 |
| Wireless communications devices, such as cellular telephones (100), include an integrated camera (202) and process image data captured by that camera (202) to determine desired device illumination levels. A controller (410) within the wireless communications device (100) causes an im |
| 7260420 |
Apparatus and method for stimulating one or more areas on a wearer |
August 21, 2007 |
| A system includes a wireless device (101) and at least one stimulator pad (400, 500). The stimulator pad (400, 500) has a set of electrodes (404) that are in communication with the wireless device (101). The stimulator pad (400, 500) is worn on the skin of a user. The wireless device (10 |
| 7224992 |
Four pole stereo headset with push to talk capability in a duplex radio |
May 29, 2007 |
| A stereo headset (104) with push-to-talk function can be interfaced with a wireless communication device (102) via a connector interface. The connector interface preferably includes a jack at the wireless communication device (102) and a compatible plug at the stereo headset (104). A |
| 7202635 |
Method and system for charging a battery to a point less than initial maximum capacity |
April 10, 2007 |
| The invention concerns a method (200) and a system (100) for charging a battery (112). The method includes the steps of determining (214) a charge termination point for the battery, in which the charge termination point produces a charge on the battery that is less than an initial ma |
| 7167107 |
Keypad array having reduced number of input/outputs and method for generating same |
January 23, 2007 |
| The invention concerns a method (200) of generating an array (100, 300, 400) having a reduced number of input/outputs (114, 314, 414). The method includes the steps of, for each array row input/output, grouping (212) at least one set of rows (124, 324, 424) in which the set of rows is co |
| 7135837 |
Method and system for selectivly diverting current during charging of multiple batteries |
November 14, 2006 |
| The invention concerns a method (300) for charging a set of batteries. The method includes the steps of charging (314) a first battery (116) with a charging current from a power supply (138), monitoring (316) a parameter of the first battery during the charging step and selectively diver |
| 7127533 |
Interrupt driven expanded option select interface for portable device |
October 24, 2006 |
| A peripheral component (104) is attached to a portable electronic device (102), and indicates an option class of the peripheral component by use of an option select circuit. The option select circuit causes an interrupt to be generated in the portable electronic device, which then de |
| 7098666 |
Method and system for battery state of charge estimation by using measured changes in voltage |
August 29, 2006 |
| A method (20 or 30) and system (40) for estimating a battery state of charge can include a memory (48) for storing at least one among an impedance value, a plurality of values for V drop 0-1, or a plurality of values for V drop 0-1 normalized for charge or discharge values providing |
| 7068013 |
Battery circuit with non-volitable memory and thermistor on a single line |
June 27, 2006 |
| A system (200) includes a battery charger (278) and a battery (202). The battery (202) includes a thermistor (230), a voltage identifying element (240), a switch (244), a memory device (232), and a battery data contact (228), connected to a data port of the memory device (232) and the |
| 7019491 |
Method and apparatus for indication of a charging condition |
March 28, 2006 |
| The invention concerns an apparatus (100) for indication of a charging condition. The apparatus includes an indication circuit (126) having at least one electromagnet (120) and a charge control circuit (128) for controlling charging current to a portable device (110). The indication |
| 6980912 |
Method and apparatus for use with a portable power source |
December 27, 2005 |
| An apparatus (10) having a portable power source (11) can make use of a plurality of differing charge depleted threshold values (and, in a preferred embodiment, corresponding visual charge-remaining indicators) to determine what level of charge remains in the portable power source (11). |
| 6972542 |
System and method for battery verification |
December 6, 2005 |
| A system for verification of a battery (100) includes the battery (100) and a device (400,500). The battery (100) includes a memory device (135) for storing an identification number and a verification number. The verification number is generated by applying a key to the identification |
| 6924619 |
Charging system for charging electronic devices in garments |
August 2, 2005 |
| A charging system (100) for charging electronic devices. The charging system (100) includes a power distributor (110) and a power receiver (112) in which the power distributor (110) transfers power to the power receiver (112) when the power receiver (112) engages the power distributor (1 |
| 6917182 |
Method and system for providing induction charging having improved efficiency |
July 12, 2005 |
| A battery charging system (250) for use with an induction charger (210). The battery charging system can include a secondary coil (252) having a plurality of turns for receiving magnetic flux produced by a primary coil (220) of the induction charger, and a control circuit (254) for c |
| 6879517 |
Battery circuit with three-terminal memory device |
April 12, 2005 |
| This invention includes a memory device having exactly three external terminals: a power external terminal; a ground or return external terminal; and a one-wire data communication external terminal. The memory is preferably employed in a rechargeable battery pack having exactly four |
| 6819083 |
Dual use thermistor for battery cell thermal protection and battery pack overcharge/undercharge |
November 16, 2004 |
| A protection circuit (100) for use with a battery operated device (50) which includes an over temperature detector (110), a controller (130), and a voltage divider circuit (102 and 106). The voltage divider circuit includes a multi-use thermistor (102) for monitoring a temperature of a |
| 6789205 |
System for determining intrinsic safety status of the combination of a communication device and |
September 7, 2004 |
| A communication device (11) is provided with a microprocessor (15) and a memory storage device (13). A battery (14) associated with the communication device 11 is provided with memory 16. The memory storage device and the memory contain values relevant to the manufacturing of each de |
| 6731096 |
Battery charging algorithm |
May 4, 2004 |
| This invention is a method of charging a battery wherein false dT/dt measurements are identified. When a NiMH battery reaches full charge, the change in temperature per unit time increases. Thus, this dT/dt measurement can be used to properly terminate charging. Initial charging, how |
| 6653814 |
Method for determining power supply compatibility in a portable device |
November 25, 2003 |
| A power supply that is compatible with a portable electric or electronic device is provided with a current sensing circuit. When the current exceeds a threshold level in response to the device intentionally changing its current demand, the power supply changes its voltage output level. T |
| 6384578 |
Method for estimating the useful power remaining in a battery of a wireless communication device |
May 7, 2002 |
| The minimum transmit battery voltage (V.sub.tx min) of a radio operating in a TDMA mode of operation or the stand-by battery voltage (V.sub.std-by) of the radio operating in a GSM mode of operation can be determined as a function of the combination of an in-slot transmit battery voltage |
| 6326770 |
Battery charging system apparatus and technique |
December 4, 2001 |
| A battery charging method (300) determines a current at which to start charging the battery which provides the capability for faster higher current sourcing capability. A start current(I.sub.start)is determined based on the battery's cut off voltage, steady state voltage, and charact |
| 6300743 |
Single wire radio to charger communications method |
October 9, 2001 |
| This invention is a single wire interface communication system whereby a phone having internal charging circuitry communicates the charging status of the battery attached to the phone by varying the duty cycle of a pulse with a predetermined period across the single wire interface. In a |
| 6242894 |
Battery conditioning scheme |
June 5, 2001 |
| A portable radio (306) provides a selectable and/or automatic battery conditioning mode of operation (400). Battery conditioning is achieved by discharge state (410) that discharges the battery down to a predetermined threshold using existing radio circuitry (308). |
| 6212415 |
Power adapter with integral radio frequency port |
April 3, 2001 |
| The present invention provides a power adapter (10) adapted to couple an external antenna (17) to a communication device (30) by way of a cable (12) which is typically plugged into a cigarette lighter of a vehicle or some other power source at one end, and an input connector of the c |
| 6205344 |
Power adapter with integral radio frequency port |
March 20, 2001 |
| The present invention provides a power adapter (10) adapted to couple an external antenna (17) to a communication device (30) by way of a cable (12) which is typically plugged into a cigarette lighter of a vehicle or some other power source at one end, and an input connector of the c |
| 6166522 |
Battery conditioning scheme |
December 26, 2000 |
| A portable radio (306) provides a selectable and/or automatic battery conditioning mode of operation (400). Battery conditioning is achieved by discharge state (410) that discharges the battery down to a predetermined threshold using existing radio circuitry (308). |
| 6054843 |
High speed battery charging system with high accuracy voltage sensing |
April 25, 2000 |
| A battery charging system 100 is provided which comprises a charger 101 and a battery pack 102. The battery pack 102 comprises a battery cell or cells 150, memory means 140, temperature sensing means 147, and a high accuracy, high impedance voltage sensing means 112 that senses voltage d |
| 6026282 |
Carry case and external electronic accessory assembly |
February 15, 2000 |
| A carry case and electronic accessory assembly (100) provides direct interconnection between an external electronic accessory (104) and a portable radio (202) with minimal use of interface contacts. The external electronic accessory (104) includes a remote accessory (114) attached to a |
| 6023150 |
Optimized method for determining remaining life cycles in a rechargeable battery |
February 8, 2000 |
| A method (200) of estimating existing and/or remaining life cycles of a battery pack (102) having an internal battery cell (104) and battery pack circuitry (110) is based on determining an impedance value of the internal battery cell (Zcell) (104), measuring the battery pack temperature |
| 5969508 |
Battery charging method using battery circuitry impedence measurement to determine optimum charg |
October 19, 1999 |
| A charging technique (200) charges a battery pack (102) by taking into account the additional internal circuit impedance of the battery pack. An optimum pack voltage value for the battery pack is calculated (208) based on the rated internal cell voltage as well as the charge current and |
| 5963012 |
Wireless battery charging system having adaptive parameter sensing |
October 5, 1999 |
| A battery pack (304) and battery charging system (300, 400) provides contactless dynamic battery parameter sensing. A proximity sensor (208) is located in the battery pack (304) to monitor battery parameter measurements taken by battery parameter sensors (206). These battery paramete |
| 5939856 |
Battery and charging system using switchable coding devices |
August 17, 1999 |
| A battery and charging system including a charger (200) that provides a current and a battery (107) having at least one cell (108) that can be charged by the current provided by the charger (200). The battery (107) includes a memory (110) that stores battery information and a coding |
| 5898295 |
Technique for avoiding overcharging a battery |
April 27, 1999 |
| By monitoring both charge current and the battery voltage (306, 308) the likelihood of overcharging a battery is reduced. Battery voltage is compared to a predetermined limit (310) and the battery goes into trickle charge if the predetermined limit is exceeded (312), but now by also |
| 5825159 |
Battery charging method for properly terminating rapid charge |
October 20, 1998 |
| A trickle wait state (225) is included in a charging routine (200) prior to initiating any rapid charge of the battery (234). The wait state (225) allows the battery temperature (Rt) to reach equilibrium with the ambient temperature (214-224) before application of any rapid charge curren |
| 5732144 |
Remote microphone display select system and method of using same |
March 24, 1998 |
| A remote microphone display select system (200) used with a two-way radio (201) for controlling the orientation of displayed information includes a remote microphone (101) which is electrically connected to a display driver (203). A hall effect switch (207) is used with the display drive |
| 5710505 |
Battery charging system having multiplexed charging functionality |
January 20, 1998 |
| A battery (302) provides both charging and discharging capability with a minimal number of terminals (304, 318, 306). A triac (310) is included within the charge path of the battery (302) to provide both discharge and charge capability. Charging system (300) provides charging and dischar |
| 5705915 |
Method for charging a battery |
January 6, 1998 |
| A method for charging a battery or battery pack (206) provides a scheme for terminating a rapid charging regime only after both a temperature and voltage threshold are exceeded. This allows a battery to continue to receive a rapid charge even when battery temperatures are rising rapidly |
| 5703467 |
Apparatus for expanding battery recognition in a battery charging system |
December 30, 1997 |
| A battery charging system (300) provides an expanded range of battery recognition between a charger (302) and a battery (304). Two resistors (316, 318) are coupled in series across the positive and negative charging terminals (B+, B-) of the battery (304) such that when the battery is |
| 5696433 |
Method and apparatus for expanded battery recognition in a battery charging system |
December 9, 1997 |
| A battery charging system (200) provides an expanded range of battery recognition. Battery (204) includes two zener diodes (224, 226) coupled in a cathode-to-cathode configuration between the battery's capacity resistor 220 and the battery's thermistor 222. The charger 202 biases the fir |
| 5684387 |
Voltage cutoff compensation method for a battery in a charger |
November 4, 1997 |
| A battery charging system (300) is capable of maintaining a fully charged battery (304) without overcharging or undercharging the battery regardless of the chemistry type, number of cells, state of charge, or rated charge current. A charging technique (200) allows a charger (306) to sens |
| 5678207 |
Radio/Microphone battery charging assembly |
October 14, 1997 |
| A multi-purpose fastening assembly (131) which can be used for both securely fastening and charging an internal battery (113) located within a wireless microphone (103). The fastening assembly (131) includes a head portion (133) and a base plate (135) which are electrically isolated so |
| 5673314 |
Electronic device with door cover speaker actuator and latch mechanism |
September 30, 1997 |
| An electronic device (100) includes an attached door cover (150) having a speaker (160) with an integral speaker magnet (165) that is used as an actuator for a magnetically enable switch (130) positioned within the housing (115) of the electronic device (100). The door cover (150) is |
| 5649307 |
Method and apparatus for option control in a radio accessory |
July 15, 1997 |
| An option select scheme (300) and circuit (200) allows a single analog-to-digital (A/D) line (211) to be used between an accessory (204) and a portable radio (202) to control first and second accessory features (234, 236). First and second variable resistive devices (226,228) are used |
| 5648715 |
Method and apparatus for current compensation of a battery in a charger |
July 15, 1997 |
| A battery charging system (200) is capable of maintaining a fully charged battery (202) without overcharging or undercharging the battery regardless of the operating mode of the radio (204). Charging system (200) includes a charger (202) which senses the capacity of the battery (206) thr |
| 5623196 |
Apparatus and method of simulating high battery temperature in a rechargeable battery |
April 22, 1997 |
| A device (111) for simulating a high battery temperature used in charging a rechargeable cell (101). The device takes advantage of a control signal generated by a voltage control circuit (103) used to disconnect a rechargeable cell (101) from a charging system (105) when a predetermined |
