Patent application number | Description | Published |
20120117284 | CONFIGURABLE 2-WIRE/3-WIRE SERIAL COMMUNICATIONS INTERFACE - A configurable 2-wire/3-wire serial communications interface (C23SCI), which includes start-of-sequence (SOS) detection circuitry and sequence processing circuitry, is disclosed. When the SOS detection circuitry is coupled to a 2-wire serial communications bus, the SOS detection circuitry detects an SOS of a received sequence based on a serial data signal and a serial clock signal. When the SOS detection circuitry is coupled to a 3-wire serial communications bus, the SOS detection circuitry detects the SOS of the received sequence based on a chip select (CS) signal. In response to detecting the SOS, the SOS detection circuitry provides an SOS detection signal to the sequence processing circuitry, which initiates processing of the received sequence using the serial data signal and the serial clock signal. The received sequence is associated with one of multiple serial communications protocols. | 05-10-2012 |
20120170690 | AUTO CONFIGURABLE 2/3 WIRE SERIAL INTERFACE - An automatically configurable 2-wire/3-wire serial communications interface (AC23SCI), which includes start-of-sequence (SOS) detection circuitry and sequence processing circuitry, is disclosed. When the SOS detection circuitry is coupled to a 2-wire serial communications bus, the SOS detection circuitry detects an SOS of a received sequence based on a serial data signal and a serial clock signal. When the SOS detection circuitry is coupled to a 3-wire serial communications bus, the SOS detection circuitry detects the SOS of the received sequence based on a chip select (CS) signal. The SOS detection circuitry provides an indication of detection of the SOS to the sequence processing circuitry, which initiates processing of the received sequence using the serial data signal and the serial clock signal upon the detection of the SOS. As such, the AC23SCI automatically configures itself for operation with some 2-wire and some 3-wire serial communications buses without external intervention. | 07-05-2012 |
20120200435 | APPARATUSES AND METHODS FOR RATE CONVERSION AND FRACTIONAL DELAY CALCULATION USING A COEFFICIENT LOOK UP TABLE - A system and method for performing sample rate conversion and creating fractional delays to a signal is disclosed. The system comprises a filter, a look up table for storing coefficients for sample rate conversion and fractional delays, and control circuitry configured to use an indexing scheme to select one or more coefficients from the look up table for rate conversion and fractional delays. The coefficients stored in the look up table comprise the coefficients required to generate delays in desired increments of a sample rate. In the disclosed method, the one or more coefficients necessary for a desired sample rate and fractional delay are selected from a single look up table and provided to a filter to delay the signal based upon the input sample rate. | 08-09-2012 |
20120242308 | PROTECTION SYSTEM AND METHOD FOR DC-DC CONVERTERS EXPOSED TO A STRONG MAGNETIC FIELD - A protection system and method for protecting a direct current to direct current voltage converter (DC-DC converter) from a potentially damaging excessive output current due to exposure to a relatively strong magnetic field is disclosed. The system includes a detector circuit configured to monitor a signal characteristic of the DC-DC converter, and a linear regulator having an output coupled to the load output of the DC-DC converter. The system further includes a control system configured to disable a load output of the DC-DC converter and enable the output of the linear regulator when the detector detects that the signal characteristic has moved outside a predetermined threshold range. Moreover, the control system is further configured to disable the output of the linear regulator after a predetermined time period, and enable the load output of the DC-DC converter after the predetermined time period. | 09-27-2012 |
20130072253 | ARCHITECTURE FOR A RADIO FREQUENCY FRONT-END - An architecture for a radio frequency (RF) front-end is disclosed. The architecture for the RF front-end includes a circuit module that includes a plurality of dies partitioned on the circuit module. A plurality of filter banks with individual ones of the plurality of filter banks disposed on each of the plurality of circuit dies is also included. Further included is a plurality of switches having individual ones of the plurality of switches coupled to corresponding ones of the plurality of filter banks and in at least one embodiment a control system is configured to open and close selected ones of the plurality of switches. | 03-21-2013 |
20130107769 | AVERAGE FREQUENCY CONTROL OF SWITCHER FOR ENVELOPE TRACKING | 05-02-2013 |
20130177106 | MULTIPLE FUNCTIONAL EQUIVALENCE DIGITAL COMMUNICATIONS INTERFACE - A multiple functional equivalence digital communications interface and a group of functional circuits are disclosed. The multiple functional equivalence digital communications interface presents a functional equivalence of each of a group of digital communications interfaces to a digital communications bus. Each functional equivalence of the group of digital communications interfaces is associated with a corresponding one of the group of functional circuits. | 07-11-2013 |
20130294554 | EXTRACTING CLOCK INFORMATION FROM A SERIAL COMMUNICATIONS BUS FOR USE IN RF COMMUNICATIONS CIRCUITRY - The present disclosure relates to RF front-end (RFFE) circuitry that includes multiple RFFE circuits, each of which may be provided by a separate integrated circuit (IC), front-end module, or both. As such, the RFFE circuits may be connected to one another using an RFFE serial communications bus. Further, one or more of the RFFE circuits may need an accurate clock source for analog-to-digital conversion (ADC), digital-to-analog conversion (DAC), calibration, sensor measurements, or the like. Instead of including an integral clock source circuit or receiving a separate external clock signal, an RFFE circuit may extract clock information from the RFFE serial communications bus to provide one or more clock signals. The clock information may be associated with one or more serial communications commands via the RFFE serial communications bus, may be associated with alternate functionality of the RFFE serial communications bus, or both. | 11-07-2013 |
20140055197 | POWER MANAGEMENT ARCHITECTURE FOR MODULATED AND CONSTANT SUPPLY OPERATION - A power management system, which includes a parallel amplifier circuit and a switch mode power supply converter, is disclosed. The switch mode power supply converter cooperatively operates with the parallel amplifier circuit to form the power management system. The power management system operates in one of a high power modulation mode, a medium power modulation mode, and a low power average power tracking mode. Further, during the high power modulation mode and the medium power modulation mode, the power management system controls a power amplifier supply voltage to a radio frequency power amplifier to provide envelope tracking. During the low power average power tracking mode, the power management system controls the power amplifier supply voltage to the radio frequency power amplifier to provide average power tracking. | 02-27-2014 |
20140077787 | OPEN LOOP RIPPLE CANCELLATION CIRCUIT IN A DC-DC CONVERTER - A direct current (DC)-DC converter, which includes an open loop ripple cancellation circuit, a switching supply, and a parallel amplifier, is disclosed. During a calibration mode, the parallel amplifier provides a parallel amplifier output current to regulate a power supply output voltage based on a calibration setpoint. The switching supply drives the parallel amplifier output current toward zero using a switching control signal, such that during the calibration mode, an estimate of a current gain is based on the switching control signal. Further, during the calibration mode, the open loop ripple cancellation circuit is disabled. During a normal operation mode, the open loop ripple cancellation circuit provides a ripple cancellation current, which is based on the estimate of the current gain. | 03-20-2014 |
20140304442 | SERIAL BUS BUFFER WITH NOISE REDUCTION - Disclosed is a digital communication control system having a serial bus buffer that includes a primary interface adapted to support serial communication over a primary bus, a buffered interface adapted to support serial communication over a buffered bus, and a controller coupled between the primary bus and the buffered bus. The primary bus is coupled to a first device and at least one second device and the buffered bus is coupled to at least one third device. The controller is adapted to receive a first data signal and a clock signal at the primary interface and replicate the first data signal and the clock signal at the buffered interface. | 10-09-2014 |
20150023458 | CLOCK AND DATA RECOVERY USING DUAL MANCHESTER ENCODED DATA STREAMS - Two Manchester encoded bit streams each bit stream with accompanying embedded clock data are disclosed. The two encoded bit streams are encoded at the source using opposite polarities of the source clock to position transitions within the bit streams at the rising and falling edges of the source clock. The receiver may extract the clock data from both bit streams. Because both rising and falling edge clock data is available between the two bit streams, the receiver does not need a phase locked loop (PLL) or incur the accompanying expense of such PLL. Further, by avoiding use of a PLL, a nearly all digital circuit may be created, which may provide further cost and space savings. Still further, a higher data throughput is provided without increasing pin count or signal bandwidth. | 01-22-2015 |
Patent application number | Description | Published |
20080244128 | Dynamic Run-Time Configuration Information Provision and Retrieval - A system employing a storage device and a host for configuration information exchange between the host and the storage device. In operation, the host manages host configuration information in a data management layer of a communication model, and communicates the host configuration information to the storage device by one or more data communication layers of the communication model. Likewise, the storage device manages storage device configuration information in the data management layer of the communication model, and communicates the storage device configuration information to the host by one or more data communication layers of the communication model. | 10-02-2008 |
20080294906 | Retrieval and Display of Encryption Labels From an Encryption Key Manager Certificate ID Attached to Key Certificate - A method, system and program in which a certificate identifier (ID) is associated with an encryption certificate. In certain embodiments, the certificate ID is stored in a cartridge memory (CM). Thus, keystore or key manager administrators can trace keystore locations, versions of keystores, etc. when a cart cannot locate a correct key. This certificate ID, as it is stored on the cartridge memory, is viewable by all. | 11-27-2008 |
20090003609 | Method for Updating Encryption Keystores Within a Data Processing System - A method for updating encryption keystores within a computer network having multiple host computers is disclosed. A keystore is initially loaded into a key manager within one of the host computers. In response to a key request by a peripheral device within the computer network, a determination is made whether or not the keystore is currently being updated. In a determination that the keystore is not currently being updated, the loaded keystore is utilized to handle the key request. In a determination that the keystore is currently being updated, any incoming key request is redirected to a local queue associated with the key manager. Afterwards, the updated keystore is utilized to handle the key request and any other key request pending in the local queue associated with the key manager. | 01-01-2009 |
20090006322 | Method for Handling Web Search Results to Be Displayed on a Browser - A method for handling web search results to be displayed on a browser is disclosed. A history information file is initially provided on a search server connected to a network. The history information file includes a set of previously viewed websites. After the receipt of a search request from an internet browser on a computer connected to the network, an internet search is preformed according to a search criteria of the search request. After the previously viewed websites listed on the history information file have been removed from the current internet search results, the current search results are then sent to the internet browser to be displayed on the internet browser. | 01-01-2009 |
20130084149 | NON-HOST INTERFACE FOR MOVING CARTRIDGES IN A CARTRIDGE LIBRARY TO PREVENT BONDING WITH LIBRARY STORAGE SLOTS - Cartridges of a computer-implemented cartridge library are moved without host system move commands to avoid bonding of cartridges to storage slots. Via a non-host interface providing external communication with respect to the cartridge library, an inventory list is obtained of cartridges of the cartridge library, bypassing host-based inventory limitations which limit each host's view to its own virtual library. Using the library inventory list, cartridges are identified that have been stored in one storage slot for a period of time that exceeds a threshold. The cartridge library is operated to move the identified cartridges, each moving to a different storage slot than the inventoried storage slot, and a library element address of each moved cartridge is updated without altering a host address for the cartridge. | 04-04-2013 |
20140185161 | HUMIDITY AND TEMPERATURE CONTROLLED TAPE DRIVE CLEANING - In one embodiment, a method includes receiving at least one of temperature information and humidity information about an environment in which a tape drive resides, performing an analysis of the at least one of temperature information and humidity information, making a determination whether to modify a cleaning cycle based on the analysis of the at least one of temperature information and humidity information, and making a selection and/or modification of a timing of a cleaning operation of the tape drive based on the determination. | 07-03-2014 |
20140307346 | HUMIDITY AND TEMPERATURE CONTROLLED TAPE DRIVE CLEANING - In one embodiment, a method includes making a determination whether to modify a cleaning cycle, e.g., of a tape drive, based at least in part on at least one of: an age of one or more tapes, a type of one or more tapes, and an identity of a vendor of one or more tapes. A selection and/or modification of a timing of a cleaning operation is made based on the determination. | 10-16-2014 |