Abstract: A signal processing method for a frequency-modulated continuous waveform (FMCW) radar system includes receiving a plurality of feedback signals from a plurality of targets and performing analog to digital conversion on the plurality of feedback signals to obtain a digital receiving signal corresponding to the plurality of feedback signals, performing a window function on the digital receiving signal to obtain a window transformation signal corresponding to the digital receiving signal, performing time-domain to frequency-domain conversion on the window transformation signal to obtain a spectrum signal of the window transformation signal, performing two beat frequency detections on the spectrum signal, and determining distances and speeds of the plurality of targets in comparison to the FMCW radar system according to results of the two beat frequency detections.

Abstract: An alarm system for a vehicle comprises a sensor disposed on an installation plane of the vehicle, configured to emit a plurality of frequency-modulated continuous waveform (FMCW) signals toward a reverse plane of the installation plane and receiving reflected signals of the plurality of FMCW signals, to detect information of a plurality of targets within a specified range corresponding to the vehicle; an alarm being controlled to generate an alarm signal; and a control module coupled to the sensor and the alarm, capable of receiving the information of the plurality of targets detected by the sensor; determining a vehicle information of the vehicle in relation to an external environment according to the information of the plurality of targets; and determining movement statuses of the plurality of targets in relation to the vehicle according to the vehicle information and the information of the plurality of targets, and accordingly controlling the alarm.

Abstract: A signal generating method for a radar system includes generating a first chirp signal and a second chirp signal having a first time delay relative to the first chirp signal; and combining the first chirp signal and the second chirp signal to determine a frequency modulated signal, wherein the first chirp signal and the second chirp signal are N-step linear stepped frequency modulated continuous waves having the same frequency modulation bandwidth, such that the frequency modulated signal includes i steps of the first chirp signal in a first duration, an interleaved combination of N?i steps of the first chirp signal and N?i steps of the second chirp signal in a second duration, and i steps of the second chirp signal in a third duration.

Abstract: An input device includes a contact sensing surface having at least one key region and a controller. The controller includes: a position-detecting unit configured to detect the position on the contact sensing surface contacted by an object, a memory unit configured to store at least one functional data each corresponding to a key function, a key-triggering unit configured to read out the functional data in the memory unit and activate the corresponding key function without a sliding into the key region, a key function setting unit configured to change the functional data based on the direction and distance of the object sliding within the key region. With this arrangement, the key function setting unit can reduce the number of the keys regions virtually provided on the contact sensing surface, thereby providing an intuitive operation of key functions for a user.

Abstract: An input device includes a contact sensing surface having at least one key region and a controller. The controller includes: a position-detecting unit configured to detect the position on the contact sensing surface contacted by an object, a memory unit configured to store at least one functional data each corresponding to a key function, a key-triggering unit configured to read out the functional data in the memory unit and activate the corresponding key function without a sliding into the key region, a key function setting unit configured to change the functional data based on the direction and distance of the object sliding within the key region. With this arrangement, the key function setting unit can reduce the number of the keys regions virtually provided on the contact sensing surface, thereby providing an intuitive operation of key functions for a user.

Abstract: The invention presents a combinational fuzzy-decision Viterbi decoder, which combines the modified ? and S-membership functions, to further improve the performance of the dedicated short-range communications (DSRC) system operated in the time-varying fading channel. The combinational fuzzy-decision Viterbi decoder includes parallel-to-serial converter, fuzzy-decision constellation decoder and analog Viterbi decoder. The coding gain of the DSRC system using the proposed combinational fuzzy-decision Viterbi decoder is compared with both the hard-decision and soft-decision Viterbi decoder for the BPSK, QPSK, 16-QAM and 64-QAM OFDM DSRC systems. The improvement in performance of the DSRC system achieved by replacing the hard decision and soft decision Viterbi decoder with the proposed combinational fuzzy-decision Viterbi decoder will be validated with simulations.

Abstract: The invention presents a combinational fuzzy-decision Viterbi decoder, which combines the modified ? and S-membership functions, to further improve the performance of the dedicated short-range communications (DSRC) system operated in the time-varying fading channel. The combinational fuzzy-decision Viterbi decoder includes parallel-to-serial converter, fuzzy-decision constellation decoder and analog Viterbi decoder. The coding gain of the DSRC system using the proposed combinational fuzzy-decision Viterbi decoder is compared with both the hard-decision and soft-decision Viterbi decoder for the BPSK, QPSK, 16-QAM and 64-QAM OFDM DSRC systems. The improvement in performance of the DSRC system achieved by replacing the hard decision and soft decision Viterbi decoder with the proposed combinational fuzzy-decision Viterbi decoder will be validated with simulations.

Abstract: The present invention relates to a power management method of portable computer and detects the electric power consumption of portable computer through a detection circuit during the operation of portable computer, in addition, dynamically changes any one of the followings: the voltage and frequency of portable computer CPU, the frequency and efficacy of Video Graphics Array (VGA), or the frequency of memory. What is more, the invention provides a plurality of power management modes of portable computer for achieving the object of managing electric power consumption of portable computer.

Abstract: The present invention relates to a power management method of portable computer and detects the electric power consumption of portable computer through a detection circuit during the operation of portable computer, in addition, dynamically changes any one of the followings: the voltage and frequency of portable computer CPU, the frequency and efficacy of Video Graphics Array (VGA), or the frequency of memory. What is more, the invention provides a plurality of power management modes of portable computer for achieving the object of managing electric power consumption of portable computer.

Abstract: A nodal point arrangement of keys on a keyboard comprises a nodal point layout of 8 rows and 16 columns, having 144 nodal points, some of the nodal points for switching with single key pressing, and rest of the nodal points for switching with two or more keys pressing. RCTRL and LCTRL are lined up in a row or a column to form a set. RSHIFT and LSHIFT are lined up in a row or a column to form a set either. RALT and LALT are lined up in a row or a column to form a set either. These three sets are disposed at the row or the column different with each other. APP is disposed at a row or a column same as either one of said three set. Fn is not allowed to locate at a row or a column same as RCTRL, LCTRL, RSHIFT, LSHIFT, RALT, LALT, and LWIN.