摘要:
A method and device for receiving a non-synchronous signal in an Orthogonal Frequency Division Multiple Access (OFDMA) system are provided. The method includes the following steps. Fourier transform is performed on a received first time domain signal to acquire a corresponding frequency domain signal. A sub-carrier occupied by a band of a non-synchronous signal to be received in the frequency domain signal is set to zero, inverse Fourier transform is performed on the frequency domain signal to acquire a second time domain signal, and the second time domain signal is subtracted from the first time domain signal. Or, the sub-carrier other than the sub-carrier occupied by the band of the non-synchronous signal to be received in the frequency domain signal is set to zero, and inverse Fourier transform is performed on the frequency domain signal to acquire a time domain received signal corresponding to the band of the non-synchronous signal.
摘要:
Methods and systems of operating an audio receiver may include a reference module configured to determine an input number of clocks per number of frames for an audio signal based on a reference clock and a specified number of frames. The audio receiver can also include a conversion module configured to re-sample the audio signal based on the input number of clocks per number of frames, the specified number of frames, and a specified number of clocks per number of frames.
摘要:
A typing support is provided as a part of a typing station including a keyboard. The typing support includes a frame having a track and a keyboard support for engagement with a keyboard, a pair of wrist supports, and mounting members on which the wrist supports are carried. The mounting members provide support for the wrists of the typist which allow pivotal movement of one and preferably both hands during typing, and also translational movement along the longitudinal axis of the track. At least one of the wrist supports may be retained in a stationary position relative to the track by a retainer. The relative height or inclination of the keyboard can be adjusted by adjustment feet. The keyboard support may include a support member which pivots relative to a base to adjust the height of the keyboard received thereon, and may also keep a sheet of paper or the like in an upright position for viewing during typing.
摘要:
A user access method and system are provided. The method includes the following steps. After the connection between a terminal and an access network AN is disconnected, a media access control identifier MAC ID is preserved in a predetermined time period. If the terminal initiates an access to the AN within the predetermined time period, the MAC ID is used by the terminal for accessing the AN. The system of the present embodiment includes a terminal and an AN. According to the method and system, the access time initiated by the terminal is reduced, the access collision is avoided, and the system performance is greatly enhanced.
摘要:
A communication method based on a plurality of softer handoff groups is provided, which includes: dividing various services into different characteristic services according to characteristics of the services; and selecting at least one softer handoff group as a serving cell of a terminal according to the characteristic services subscribed by the terminal. A communication system, a data transmission method and a data transmission system, and a communication mode combination method and a communication mode combination system based on a plurality of softer handoff groups are further provided. With the above technical solutions, through selecting a plurality of softer handoff cells as the serving cell, the requirement of simultaneous transmission of wideband service data is satisfied and the system efficiency is enhanced, thereby improving the resource utilization rate.
摘要:
Methods and systems of operating an audio receiver may include a reference module configured to determine an input number of clocks per number of frames for an audio signal based on a reference clock and a specified number of frames. The audio receiver can also include a conversion module configured to re-sample the audio signal based on the input number of clocks per number of frames, the specified number of frames, and a specified number of clocks per number of frames.
摘要:
A method and device for receiving a non-synchronous signal in an Orthogonal Frequency Division Multiple Access (OFDMA) system are provided. The method includes the following steps. Fourier transform is performed on a received first time domain signal to acquire a corresponding frequency domain signal. A sub-carrier occupied by a band of a non-synchronous signal to be received in the frequency domain signal is set to zero, inverse Fourier transform is performed on the frequency domain signal to acquire a second time domain signal, and the second time domain signal is subtracted from the first time domain signal. Or, the sub-carrier other than the sub-carrier occupied by the band of the non-synchronous signal to be received in the frequency domain signal is set to zero, and inverse Fourier transform is performed on the frequency domain signal to acquire a time domain received signal corresponding to the band of the non-synchronous signal.
摘要:
Embodiments in accordance with the present invention relate to structures and methods allowing stress-induced electromigration to be tested in multiple interconnect metallization layers. An embodiment of a testing structure in accordance with the present invention comprises at least two segments of a different metal layer through via structures. Each segment includes nodes configured to receive force and sense voltages. Selective application of force and sense voltages to these nodes allows rapid and precise detection of stress-induced immigration in each of the metal layers.
摘要:
Embodiments in accordance with the present invention relate to structures and methods allowing stress-induced electromigration to be tested in multiple interconnect metallization layers. An embodiment of a testing structure in accordance with the present invention comprises at least two segments of a different metal layer through via structures. Each segment includes nodes configured to receive force and sense voltages. Selective application of force and sense voltages to these nodes allows rapid and precise detection of stress-induced immigration in each of the metal layers.
摘要:
Multi-purpose poly edge test structure. According to an embodiment, the present invention provides a test structure. The test structure includes a doped silicon substrate, the doped silicon substrate being grounded, the doped silicon substrate including a first gate structure and a second gate structure, the first and second gate structures overlaying the doped silicon substrate. The test structure also includes a first conducting pad being electrically coupled to the first gate structure. The test structure also includes a second conducting pad being electrically coupled to the second gate structure.