Patent application number | Description | Published |
20090096499 | Apparatus and method for power amplification with delay control in wireless communication system - A transmitting apparatus and method for power amplification with delay control in a wireless communication system are provided. The apparatus includes signal converters, a delay difference measurer, and a delay controller. The signal converters separate a baseband signal into an envelope signal and a phase modulated signal. The delay difference measurer measures a delay difference between an envelope signal path and a phase modulated signal path using a correlation coefficient extraction and interpolation technique. The delay controller sets a delay in a clock period unit to a signal path having a small delay and sets a delay by a remainder delay difference to a signal path having a large delay, depending on the measured delay difference. | 04-16-2009 |
20090097591 | APPARATUS AND METHOD FOR ENVELOPE TRACKING POWER AMPLIFICATION IN WIRELESS COMMUNICATION SYSTEM - An apparatus and a method for Envelope Tracking (ET) power amplification in a wireless communication system are provided. The apparatus includes a baseband signal controller for outputting an envelope signal in an envelope signal path and outputting a constant signal in a baseband signal path when measuring a time delay of the envelope signal path, and for outputting a constant signal in the envelope signal path and outputting a baseband signal in the baseband signal path when measuring a time delay of the baseband signal path, a time delay difference measurer for measuring a time delay of each path by calculating a correlation coefficient between the envelope signal path and the baseband signal path and a signal time controller for setting a time delay in a corresponding path using the time delay difference of each path and aligning times. | 04-16-2009 |
20100017564 | CONTROLLER, DATA STORAGE DEVICE, AND DATA COMMUNICATION SYSTEM HAVING VARIABLE COMMUNICATION SPEED - A main controller for use within a data storage device including a first data storage device and a second data storage device is disclosed. The controller includes a memory configured to store a plurality of protocol program data, and a processor configured to receive a host control signal from a host defining a primary operation, and to execute protocol program data selected from the plurality of protocol program data to define a first data communication protocol in accordance with the received host control signal. The processor is further configured to electrically store data in the first data storage device or magnetically store the data in the second data storage device during a secondary operation associated with the first operation, wherein the data is communicated from the processor to the first data storage device or the second data storage device during the secondary operation using a second. | 01-21-2010 |
20100017565 | DATA STORAGE DEVICE AND SYSTEM HAVING IMPROVED WRITE SPEED - A data storage device is provided, including a first data storage device electrically storing write data, a second data storage device magnetically storing write data, and a controller partitioning write data into first and second write data portions. The first write data portion is programmed to the first data storage device and the second write data portion if magnetically written to the second data storage device at the same time. | 01-21-2010 |
20100037017 | HYBRID STORAGE APPARATUS AND LOGICAL BLOCK ADDRESS ASSIGNING METHOD - Hybrid storage apparatus and logical block address assigning methods for the hybrid storage apparatus are provided. A hybrid storage apparatus includes a plurality of storage apparatuses having different writing methods, and a controller to combine the storage apparatuses as a single storage apparatus, to assign one or more logic block addresses to the single storage apparatus, and to access the storage apparatuses using the logic block addresses. The address assigning method of a hybrid storage apparatus includes searching and detecting one or more storage apparatuses included in a hybrid storage apparatus when an initially set condition is generated, combining the storage apparatuses as a single storage apparatus, assigning one or more logic block addresses to the single storage apparatus, and accessing the storage apparatuses using the logic block addresses. | 02-11-2010 |
20100172049 | HYBRID STORAGE APPARATUS AND METHOD OF SHARING RESOURCES THEREIN - A hybrid storage apparatus having a plurality of storage devices and a method of sharing resources therein. The hybrid storage apparatus can include a plurality of storage device controllers to respectively control a plurality of storage devices that employ different writing methods, a system controller to exchange information with the storage device controllers such that the plurality of storage devices are controlled in one system and in an integrated manner, a reset signal generation unit to output a reset signal that is in a first logic state via an output terminal when a power supply voltage used in the system is equal to or greater than a reference voltage, and a connection unit to electrically connect the output terminal of the reset signal generation unit to a reset signal input terminal of the system controller and to reset signal input terminals of the storage device controllers. | 07-08-2010 |
20100302664 | DISK DRIVE DATA STORAGE SYSTEMS AND METHODS USING BACKUP POWER SOURCE CHARGED BY SPINDLE MOTOR - A data storage system includes data storage including at least one data storage disk driven by a spindle motor and a control circuit coupled to the data storage and configured to be coupled to a main power source and a backup power source. The control circuit is configured to detect failure of the main power source, to responsively write data to the data storage while powered by the backup power source, and to subsequently recharge the backup power source using the spindle motor. The control circuit may be configured to further write data to the data storage using the recharged backup power source. The data storage system may further include a head configured to read and/or write data to or from the at least one data storage disk, and the control circuit may be configured to park the head using the recharged backup power source. | 12-02-2010 |
20140122747 | CONTROLLER, DATA STORAGE DEVICE, AND DATA COMMUNICATION SYSTEM HAVING VARIABLE COMMUNICATION SPEED - Apparatuses having variable communication speeds are disclose. In one example, an apparatus may comprise a controller configured to: receive a signal from a host, the signal being compatible with a data communication protocol at a first data communication speed; selectively implement a first data communication protocol from a plurality of data communication protocols to communicate with a first memory or implement a second data communication protocol from the plurality of data communication protocols to communicate with a second memory based on the data communication speed; store data in the first memory via the first data communication protocol when the data communication speed is a first speed; and store data in the second memory via the second data communication protocol when the data communication speed is a second speed that is different than the first speed. | 05-01-2014 |
20140233409 | APPARATUS AND METHOD FOR MANAGING MEASUREMENT GAP IN WIRELESS COMMUNICATION SYSTEM - A method for operating a terminal in a wireless communication system is provided. The method includes at least one of transmitting data to and receiving data from a primary cell using a first Radio Frequency (RF) path, and, when a secondary cell is deactivated, operating a second RF path to perform searching and measurement with respect to at least one target cell at a frequency different from a frequency of the primary cell. | 08-21-2014 |