DIRECT MEASUREMENT OF AN INPUT SIGNAL TO A LOUDSPEAKER TO DETERMINE AND LIMIT A TEMPERATURE OF A VOICE COIL OF THE LOUDSPEAKER
Granted: June 19, 2014
Application Number:
20140169571
Aspects of the disclosure pertain to a system and method for providing temperature limiting for a voice coil of a speaker. The system and method provide the aforementioned temperature limiting based upon monitoring (e.g., measurement) of an amplifier output signal provided to the speaker. Providing the aforementioned temperature limiting promotes improved protection for the speaker.
System to Determine Associated Electronic Devices
Granted: June 12, 2014
Application Number:
20140161200
Various embodiments of the invention allow for electronic labeling and identification of electronic equipment. Contact-based and contactless systems and methods to electronically associate hardware are described.
DIGITAL TO ANALOG CONVERTERS WITH ADJUSTABLE OUTPUT RESOLUTION
Granted: June 5, 2014
Application Number:
20140152479
A digital to analog converter (DAC) includes: first and second nodes; a first switching device; a second switching device; and a switch control module. The switch control module selectively configures the first and second switching devices such that: in a first configuration, the first switching device connects a first current to the first node and the second switching device connects a second current to the second node; in a second configuration, the first switching device connects the…
CONTINUOUS TIME CORRELATOR ARCHITECTURE
Granted: June 5, 2014
Application Number:
20140152328
A system includes a signal generator and a correlator. The signal generator outputs a first signal to a first end of a capacitance to be measured. The correlator is connected to an output of the signal generator that outputs the first signal and to a second end of the capacitance. The correlator receives the first signal from the output of the signal generator and receives a second signal from the second end of the capacitance. The correlator correlates the first signal and the second…
DUAL-MODE CAPACITANCE SENSING IN A TOUCH PANEL SENSOR
Granted: May 29, 2014
Application Number:
20140145997
A touch panel sensor system configured to measure mutual-capacitance and self-capacitance is disclosed. The touch panel sensor system includes a sensor configured to detect a change in capacitance associated with a touch event upon a touch panel and a measuring component. The measuring component is configured to detect mutual-capacitance during the first mode of operation and to detect self-capacitance during the second mode of operation. The system also includes a selection component…
Simple and High Efficiency Balancing Circuits and Methods for Hybrid Batteries
Granted: May 29, 2014
Application Number:
20140145669
A balancing circuits and methods for hybrid batteries having two different rechargeable batteries that are coupled in series includes coupling a fuel gauge to each battery to determine the state of charge of each battery, comparing the state of charge of the two batteries, and if the state of charge of the two batteries is more than a predetermined difference, then enabling a switching converter to source current to a node between the batteries or to sink current from the node between…
Dynamic Speaker Management for Multichannel Audio Systems
Granted: May 22, 2014
Application Number:
20140140535
A multiband limiter with selective sideband linking includes first and second frequency band splitters, a first and second plurality of limiters, first and second summers, and a plurality of selectable links coupling the first plurality of limiters to the second plurality of limiters. The first plurality of limiters each have a band input coupled to one of the first plurality of band outputs, a link port and a limiter output, and the first summer is receptive to the limiter outputs of…
LED Lighting System and Method
Granted: May 22, 2014
Application Number:
20140139107
Various embodiments of the invention allow LED lamp fixtures to pass EMI testing irrespective of whether the lamp fixture is operated by a magnetic transformer or an electric transformer without causing input current waveform distortion and without defeating transformer compatibility. In certain embodiments, the type of transformer is determined based on detecting characteristic voltage waveforms and based that determination an EMI filter is automatically switched in and out of the lamp…
EMBEDDED RADIO FREQUENCY IDENTIFICATION (RFID) PACKAGE
Granted: May 15, 2014
Application Number:
20140131450
A radio frequency identification (RFID) device is described. In one or more implementations, the RFID device includes an integrated circuit (IC) die electrically connected to a radio frequency (RF) antenna winding for transmitting electronically stored information via the RF antenna winding. The RFID device also includes a substrate comprising a first core laminated to a second core. The RF antenna winding is routed through the first core and the second core. The first core defines a…
Dynamic Speaker Management with Echo Cancellation
Granted: May 15, 2014
Application Number:
20140135078
A system for echo cancellation includes a dynamic speaker management (DSM) module, a current/voltage sensing amplifier, a sound pressure level (SPL) model module and an echo canceller. The example DSM module is receptive to a far-end signal and is operative to develop a modified far-end signal and a plurality of parameter outputs. The example current/voltage sensing amplifier is coupled to the modified far-end signal and develops an amplifier output, a voltage (V) parameter output, and a…
SYSTEM AND METHOD FOR REDUCING AMBIENT LIGHT SENSITIVITY OF INFRARED (IR) DETECTORS
Granted: May 8, 2014
Application Number:
20140124797
Aspects of the disclosure pertain to a system and method for reducing ambient light sensitivity of Infrared (IR) detectors. Optical filter(s) (e.g., absorption filter(s), interference filter(s)) placed over a sensor of the IR detector (e.g., gesture sensor) absorb or reflect visible light, while passing specific IR wavelengths, for promoting the reduced ambient light sensitivity of the IR detector.
CAPACITIVE TOUCH PANEL SENSOR FOR MITIGATING EFFECTS OF A FLOATING CONDITION
Granted: April 17, 2014
Application Number:
20140104221
A capacitive touch panel includes elongated drive electrodes arranged next to one another and elongated sense electrodes arranged next to one another across the elongated drive electrodes. One or more of the elongated drive electrodes defines a notch along an edge of a drive electrode, where the notch is positioned between adjacent sense electrodes. In some embodiments, the drive electrode also defines a generally opposing notch on an opposing edge of the drive electrode. Additionally,…
MODE-BASED SECURE MICROCONTROLLER
Granted: April 10, 2014
Application Number:
20140101459
Various embodiments of the present invention are related to integrated circuits for processing data at a microcontroller interface. The microcontroller interfaces to a memory. The method is employed to process input data provided by the microcontroller during a memory write operation, or input data extracted from the memory during a memory read operation, respectively. A write/read control is used to indicate the memory write or read operation, and a logic address is translated to at…
ACTIVE BRIDGE BACK POWERING PROTECTION AND POWERED DEVICE INTERFACE WITH ACTIVE BRIDGE CONTROL
Granted: March 27, 2014
Application Number:
20140085948
A method is disclosed to at least partially prevent back powering of power sourcing equipment. In one or more implementations, the method includes detecting a magnitude of current through a current sensor, such as a transistor and/or a resistor. The active FET bridge is configured to rectify input power supplied by power sourcing equipment to a power over Ethernet (PoE) powered device. The method also includes causing the transistor to transition from a closed configuration to an open…
MAINTAIN POWER SIGNATURE (MPS) FROM A POWERED DEVICE (PD) WHILE POWER IS DRAWN FROM ANOTHER SOURCE
Granted: March 27, 2014
Application Number:
20140084681
A system for sinking maintain power signature (MPS) current to a rectifier bridge from a powered device (PD) controller in a Power over Ethernet (PoE) network is disclosed. In one or more implementations, the system includes a rectifier bridge configured to electrically connect to Power over Ethernet power sourcing equipment for receiving power from the power sourcing equipment. The system also includes a powered device controller operatively connected to the rectifier bridge and…
SEMICONDUCTOR PACKAGE DEVICE HAVING PASSIVE ENERGY COMPONENTS
Granted: March 20, 2014
Application Number:
20140077385
A semiconductor package device is disclosed that includes a passive energy component integrated therein. In an implementation, the semiconductor package device includes a semiconductor substrate having a first surface and a second surface. The semiconductor substrate includes one or more integrated circuits formed proximal to the first surface. The semiconductor package device also includes a passive energy component positioned over the second surface. The passive energy component is…
THREE-DIMENSIONAL SEMICONDUCTOR PACKAGE DEVICE HAVING ENHANCED SECURITY
Granted: March 20, 2014
Application Number:
20140077355
A semiconductor package device that includes an integrated circuit device package having a storage circuitry is disclosed. In an implementation, the semiconductor package device includes a semiconductor substrate having a first surface and a second surface. The semiconductor substrate includes one or more integrated circuits formed proximal to (e.g., adjacent to, in, or on) the first surface. The semiconductor package device also includes an integrated circuit device disposed over the…
PIEZO DRIVER HAVING RECHARGING CAPABILITY
Granted: March 13, 2014
Application Number:
20140070666
A piezo driver is described that is configured to furnish electric charge to a piezo component and configured to transfer electric charge from the piezo component to a passive energy storage component during various operational states of the piezo driver. In one or more implementations, the piezo driver includes a first passive energy storage component and a second passive energy storage component configured to store electric charge. The piezo driver also includes a voltage converter…
PIEZO DRIVER HAVING PASSIVE ENERGY STORAGE COMPONENT RECHARGING CAPABILITY
Granted: March 13, 2014
Application Number:
20140070665
A piezo driver is described that is configured to furnish electric charge to a piezo component during a first operational state and configured to transfer electric charge from the piezo component to a passive energy storage component during a second operational state. In one or more implementations, the piezo driver includes a passive energy storage component configured to store electric charge. The piezo driver also includes a voltage converter configured to electrically connect between…
N-Channel Multi-Time Programmable Memory Devices
Granted: March 6, 2014
Application Number:
20140063958
N-channel multi-time programmable memory devices having an N-conductivity type substrate, first and second P-conductivity type wells in the N-conductivity type substrate, N-conductivity type source and drain regions formed in the first P-conductivity type well, the source and drain regions being separated by a channel region, an oxide layer over the N-conductivity type substrate; and a floating gate extending over the channel region and over the second P-conductivity type well in the…
