Transport stream multiplexers and methods for providing packets on a transport stream
Granted: September 11, 2018
Patent Number:
10075749
Examples described include transport stream multiplexers that may not need to search for an appropriate source to use to generate a transport stream packet. Instead, the source to use may be indicated by a position (e.g. an entry) in a memory table, e.g. a metadata array. Methods for placing transport stream packets on a transport stream and initializing the metadata array are also described.
Pulse width modulation (PWM) to align clocks across multiple separated cards within a communication system
Granted: September 11, 2018
Patent Number:
10075284
A system and method for clock phase alignment at a plurality of line cards over a backplane of a communication system. Phase adjustments are continually made for the clock signals at the line cards by dynamically measuring the propagation delay between the timing device and each of the plurality of line cards and continuously communicating the appropriate phase adjustment to each of the plurality of line cards.
GAAS/SIGE-BICMOS-based transceiver system-in-package for E-band frequency applications
Granted: September 11, 2018
Patent Number:
10075207
An e-band transceiver includes a transmitter circuit and a receiver circuit. The transmitter circuit includes a surface mounted technology (SMT) module on which is mounted a silicon-germanium (SiGe) bipolar plus CMOS (BiCMOS) converter, a gallium arsenide (GaAs) pseudomorphic high-electron-mobility transistor (pHEMT) output amplifier coupled to the SiGe BiCMOS converter, and a microstrip/waveguide interface coupled to the GaAs pHEMT output amplifier. The receiver circuit of the e-band…
Method and apparatus for novel adaptive equalization technique for serializer/deserializer links
Granted: August 28, 2018
Patent Number:
10063397
A method and apparatus for a novel adaptive equalization technique for a Serializer/Deserializer receiver is disclosed. In one approach, adjustment of AC and DC gains is performed before DFE coefficients are adjusted. Further after the equalization an electrical idle threshold may be set based on the results of the equalization.
Fast memory access control for phase and gain
Granted: August 28, 2018
Patent Number:
10063303
An apparatus includes a switching circuit and a plurality of registers. The switching circuit may be configured to generate a plurality of control signals in response to an enable signal. One control signal at a time may be active while the enable signal is in a transfer state. The registers may be configured to (i) buffer a plurality of setting values received from a memory and (ii) present the setting values from a subset of the registers to a plurality of transceiver circuits while a…
Method to build asymmetrical transmit/receive switch with 90 degrees impedance transformation section
Granted: August 28, 2018
Patent Number:
10063274
An apparatus includes an input port, an output port, a common port, a first impedance matching network, a second impedance matching network, a first switch circuit, and a second switch circuit. The first impedance matching network may be coupled between the input port and the common port. The second impedance matching network may be coupled between the common port and the output port. The first switch circuit may be coupled between the input port and a circuit ground potential. The…
Methods and apparatuses for filtering of ringing artifacts post decoding
Granted: August 21, 2018
Patent Number:
10057601
A technique to perform filtering of ringing artifacts is disclosed herein. An example apparatus may include a decoder configured to receive a bitstream, decode the bitstream into blocks, identify conditions in the blocks associated with generation of ringing artifacts, and filter the ringing artifacts from one or more of the blocks responsive to identification of the conditions by the decoder. An example method may include detecting conditions in a bitstream that lead to ringing…
Flexible point-to-point memory topology
Granted: July 24, 2018
Patent Number:
10032497
An apparatus includes a plurality of memory devices and a control circuit. The control circuit may be configured to enable a plurality of access modes for the plurality of memory devices. In a one-channel mode, all of the memory devices are accessed using a single selectable channel. In a two-channel mode, a first portion of the plurality of memory devices is accessed using a first channel and a second portion of the plurality of memory devices is accessed using a second channel.
Apparatuses and methods for filtering noise from a video signal
Granted: July 17, 2018
Patent Number:
10027986
Apparatuses and methods for filtering noise from a video signal are described herein. An example apparatus may include a noise filter system configured to filter noise from a frame of a video signal based on a noise level of the frame to provide a filtered video signal. The noise filter system may be configured to select macroblocks of the frame that have an associated weighted activity to variance ratio that exceeds a threshold value. The noise filter system may be further configured to…
Method and apparatus for parallel decoding
Granted: July 17, 2018
Patent Number:
10027989
Example methods and apparatuses including a picture parallel decoder are described herein. The picture parallel decoder includes an entropy pre-processing unit, an entropy transcoding unit, and a plurality of decoders. The entropy pre-processing unit may be configured to determine dependencies between frames of an encoded bitstream and to determine slice location data within the encoded bitstream based on dependencies between the frames. The entropy transcoding unit may be configured to…
Apparatuses and methods for estimating bitstream bit counts
Granted: July 10, 2018
Patent Number:
10021409
Examples of methods and apparatuses for estimating bit counts of a bitstream are described herein. An entropy encoder may include a bitstream encoding module and a bit count estimation module. The bitstream encoding module may be configured to encode a plurality of syntax elements according to a first encoding technique. The bit count estimation module may be configured to provide estimated bit counts for encoding the plurality of syntax elements according to a second encoding technique.…
Apparatus, system, and method for back-channel communication in an inductive wireless power transfer system
Granted: July 3, 2018
Patent Number:
10014721
An inductive wireless power transfer device comprises a transmitter that comprises a transmit coil configured to generate a wireless power signal to a coupling region in response to an input voltage, and a modulator configured to modulate the wireless power signal and encode data with the wireless power signal to establish a back-channel communication link from the transmitter to a receiver. An inductive wireless power receiving device comprises a receiver that comprises a receive coil…
Apparatuses and related methods for modulating power of a wireless power receiver
Granted: June 12, 2018
Patent Number:
9998180
A wireless power enabled apparatus may comprise a wireless power receiver that includes a receive coil configured to generate an AC signal responsive an electromagnetic field, a rectifier including a plurality of switches configured to receive the AC signal and generate an output power signal, and control logic configured to control the plurality of switches to cause the rectifier to modulate the output power signal. The control logic may be configured to control the plurality of…
Apparatuses and related methods for a wireless power receiver using coupled inductors
Granted: June 5, 2018
Patent Number:
9991818
A wireless power enabled apparatus includes a wireless power receiver. The wireless power receiver includes one or more receive coils configured to generate an AC power signal responsive to a wireless power signal. The wireless power receiver also includes two or more inductors configured with tightly coupled windings that share a common leakage inductance. Switching circuits are included such that each switching circuit is operably coupled to a corresponding one of the inductors.…
Dual use bootstrap driver
Granted: May 22, 2018
Patent Number:
9979290
A switching regulator is presented. An embodiment of the switching regulator can include a high switch coupled between an input voltage and a switched output; a low switch coupled between the switched output and a ground; and a ringing switch coupled between a capacitor and the switched output, wherein the ringing switch is closed prior to transition into a tristate where both the high switch and the low switch are open.
Adaptive resonant topology application in wearable devices
Granted: May 22, 2018
Patent Number:
9979237
A wireless power transmission system is presented. The wireless power circuit includes an adaptive transmitter coupled to a transmit coil; a receive coil in interaction with the transmit coil, the receive coil being thin and having an inner diameter large enough to accommodate sensors of a wearable device; and a receive circuit receiving power from the receive coil.
On-die verification of resistor fabricated in CMOS process
Granted: May 22, 2018
Patent Number:
9977073
An apparatus includes a resistor and a circuit. The resistor may be fabricated on a die using a semiconductor process. The circuit may be fabricated on the die using the semiconductor process and may be configured to (i) generate a measurement voltage at a node of the resistor as a function of a capacitance value and a frequency of a clock signal and (ii) generate a codeword in response to the measurement voltage. The codeword generally has a plurality of possible values. A particular…
Suppression of audible harmonics in wireless power receivers
Granted: April 24, 2018
Patent Number:
9954398
A wireless power enabled apparatus includes a wireless power receiver. The wireless power receiver includes a receive coil, a rectifier, a regulator, and a damping circuit. The receive coil is configured to generate an AC power signal responsive to a wireless power signal. The rectifier is configured to receive the AC power signal and generate a DC rectified power signal relative to a rectified ground signal. The regulator is operably coupled with the rectifier to receive the DC…
Bulk acoustic wave resonator based fractional frequency synthesizer and method of use
Granted: April 24, 2018
Patent Number:
9954541
A frequency synthesizer comprising a first phase locked loop (PLL) circuit coupled to receive a reference frequency signal from a reference oscillator, the first PLL circuit comprising a first voltage controlled oscillator (VCO) having a bulk acoustic wave (BAW) resonator and a first fractional feedback divider circuit, the first PLL circuit outputting a first tuned frequency signal and a first plurality of integer divider circuits coupled to receive the first tuned frequency signal from…
Timing device having multi-purpose pin with proactive function
Granted: April 24, 2018
Patent Number:
9954516
A timing device that includes an OTP NVM, a first periodic signal generator operable to generate a periodic signal having a first frequency, a second periodic signal generator operable to generate a periodic signal having a frequency that is lower than the first frequency, and selection logic. In a first operating mode, the selection logic is configured to output the first periodic signal at an output terminal as long as a crystal clock feedback signal is received at the input terminal…
