摘要:
Provided is a correlation apparatus based on symmetry of a correlation coefficient that can reduce complexity of hardware by reducing the number of adders and multipliers. Accordingly, when values of a real number part and an imaginary number part are exchanged with respect to a middle point of a correlation coefficient sequence and divided into two parts of left and right by the middle point of the correlation coefficient sequence, the values of the real number part and the imaginary number part are even-symmetrical with respect to the middle point of the divided two parts. Therefore, the number of the adders required for forming the correlation apparatus is reduced by at least 20% and the number of the multipliers is reduced by at least 70% in comparison with the 62 adders and the 64 multipliers required for a conventional correlation apparatus.
摘要:
Provided is a correlation apparatus based on symmetry of a correlation coefficient that can reduce complexity of hardware by reducing the number of adders and multipliers, and a method thereof. The correlation apparatus for correlating a complex correlation coefficient sequence which is symmetrical with respect to a received complex signal sequence includes a delaying means for delaying the received complex signal sequence; a first adding means for adding the complex signal sequence delayed in the delaying means; a second adding means for adding each output signal of the first adding means; a correlation coefficient multiplying means for multiplying each output signal of the second adding means by a complex correlation coefficient of the complex correlation coefficient sequence; and a final output adding means for adding each output signal of the correlation coefficient multiplying means.
摘要:
An apparatus and method for controlling a screen display in a portable terminal are provided. The apparatus includes a display unit, an input unit, a memory unit, a magnification identifying unit, and a controller. The display unit displays a screen display having a controlled magnification level. The input unit sets a zoom-in or zoom-out point on the screen display. The memory unit stores reference information for determining a zoom-in or zoom-out magnification level of the screen display. The magnification identifying unit measures a tilt of the portable terminal, and determines control or non-control of a magnification level of the screen display using the measured tilt. The controller controls the screen display according to the identified magnification level.
摘要:
A method for reducing current consumption of a mobile terminal is provided. The method includes setting a task as an initial idle task of the mobile terminal for performing a simple infinite loop in a state where all of the effective tasks performed by a program of the mobile terminal are blocked, counting global variable values of the idle task for a predetermined time according to a timer interrupt signal generated by the timer at regular intervals and storing the global variable values of the idle task as a reference value of an idle task of a program of the mobile terminal, resetting the counted value, measuring by counting the global variable values of the idle task where an effective task occupies the idle task for a predetermined time and storing the global variable values of the idle task as an idle value of the effective task according to a timer interrupt generated every predetermined time by the timer when the program of the mobile terminal performs the effective task, dividing the measured idle value of the effective task by the reference value of the idle task, to thus calculate a program idle rate of the mobile terminal, and storing the program idle rate, and changing a PLL value according to the program idle rate of the mobile terminal and varying a main clock frequency of a CPU of the mobile communication terminal.
摘要:
A method for providing a data service in a CDMA communications system includes sending, at a base station, information about a free data channel to a plurality of mobile stations on a common channel; and sending, at the base station, specified free data to the plurality of mobile stations on the free data channel. The method may also include demodulating, at a mobile station, a common channel received from a base station to detect information about a free data channel; and demodulating, at the mobile station, the free data channel received from the base station according to the information about the free data channel and receiving the corresponding free data.
摘要:
A base-band interleaver for forward traffic and paging channel for CDMA mobile telecommunication system with reduced memory size for data interleaving and more simplified construction. Modulo-16 circuit divides an index by a numeral 16, the index being a selected one of successive indexes 0 to 383 corresponding to input data, and provides a remainder. Bit invertor makes bit inversion of an output from the modulo-16 circuit and determines a column position to write in the data with interleaving taken. Quotient-16 circuit produces a quotient of dividing of the index by the numeral 16. Code converter has a row table by which the quotient is respectively matched to a row position to be written with interleaving taken, for generating a row position corresponding to the quotient. 24-based counter provides a 24-based counted value corresponding to a selected row of output data to read out. 16-based counter provides a 16-based counted value corresponding to a selected column of output data to read out. Memory has an interleaving table inclusive of 32 rows and 16 columns, the input data being written to a selected position of the interleaving table according to an output of the bit invertor and an output of the code converter, the output data being data read out from a position corresponding to the output of the 16-based counter and the output of the 24-based counter.
摘要:
Compositions and methods related to stromal antigen 2 (STAG2) and its role in diverse human cancers, including nucleic acids, polypeptides, vectors, cells and cell lines.
摘要:
A multipath accessible semiconductor memory device provides an interface function between processors. The memory device may include a memory cell array having a shared memory area operationally coupled to two or more ports that are independently accessible by two or more processors, an access path forming unit to form a data access path between one of the ports and the shared memory area in response to external signals applied by the processors, and an interface unit having a semaphore area and mailbox areas accessible in the shared memory area by the two or more processors to provide an interface function for communication between the two or more processors.
摘要:
An LCD device and a method for manufacturing the same is disclosed, in which it is possible to correct a problem of insufficient or excessive supply of liquid crystal in an LCD device by controlling an amount of liquid crystal. The method includes preparing a liquid crystal cell comprised of a first substrate, a second substrate, a liquid crystal layer between the first and second substrates, and a first sealant formed in the periphery of the liquid crystal layer between the first and second substrates; measuring an amount of liquid crystal provided to the inside of liquid crystal cell; forming an inlet for liquid crystal in the first sealant; and regulating the amount of liquid crystal by supplying or discharging the liquid crystal through the inlet; and sealing the inlet.
摘要:
An LCD device and a method for manufacturing the same is disclosed, in which it is possible to correct a problem of insufficient or excessive supply of liquid crystal in an LCD device by controlling an amount of liquid crystal. The method includes preparing a liquid crystal cell comprised of a first substrate, a second substrate, a liquid crystal layer between the first and second substrates, and a first sealant formed in the periphery of the liquid crystal layer between the first and second substrates; measuring an amount of liquid crystal provided to the inside of liquid crystal cell; forming an inlet for liquid crystal in the first sealant; and regulating the amount of liquid crystal by supplying or discharging the liquid crystal through the inlet; and sealing the inlet.