Abstract: A laser lift-off method for LEDs forms an elevation difference structure on a conversion substrate corresponding to one isolation zone of an epitaxial layer before epitaxy is formed on the conversion substrate to form the epitaxial layer. The elevation difference structure can release stress between the material interfaces, thus can reduce broken probability while lifting off the conversion substrate and epitaxial layer via laser and further improve production yield.

Abstract: A low contact resistance semiconductor structure includes a substrate, a semiconductor stacked layer, a low contact resistance layer and a transparent conductive layer. The low contact resistance layer is formed on one side of a P-type GaN layer of the semiconductor stacked layer. The low contact resistance layer is formed at a thickness smaller than 100 Angstroms and made of a material selected from the group consisting of aluminum, gallium, indium, and combinations thereof. Through the low contact resistance layer, the resistance between the P-type GaN layer and transparent conductive layer can be reduced and light emission efficiency can be improved when being used on LEDs. The method of fabricating the low contact resistance semiconductor structure of the invention forms a thin and consistent low contact resistance layer through a Metal Organic Chemical Vapor Deposition (MOCVD) method to enhance matching degree among various layers.

Abstract: An authorization system of a navigation device includes a first identification (ID) module and a second ID module. The first ID module is arranged to perform authorization for a first portion of the navigation device, and the second ID module is arranged to perform authorization for a second portion of the navigation device. The first and the second ID modules perform bidirectional authorization of the first and the second portions, and further determine behavior of the navigation device according to a result of the bidirectional authorization. An associated authorization method for controlling the navigation device is further provided.

Abstract: A method and apparatus for obtaining Global navigation Satellite System (GNSS) time in a GNSS receiver are provided. The following steps are included: obtaining a time relationship between a first clock signal and the received GNSS time; obtaining a first clock value of a second clock signal and an first associated clock value of the first clock signal at a first time point; calculating a first GNSS time corresponding to the first clock value of the second clock signal according to the first associated clock value and the time relationship; obtaining a second clock value of the second clock signal and an second associated clock value of the first clock signal at a second time point; and calculating a second GNSS time corresponding to the second associated clock value, according to the first GNSS time, the first clock value and the second clock value of the second clock signal.

Abstract: A portable electronic apparatus includes a main body, a camera device, and a supplementary light device. The camera device and the supplementary light device are fixed on the main body. The supplementary light device includes a light module, a lens module, and a motor. The light module includes a circuit board, a light source, and a heat sink opposite to the light source. The lens module includes a lens barrel and a plurality of lenses received in the lens module. The motor drives the lens module to change the intensity distribution of the light from the light module.

Abstract: A semiconductor wafer includes a substrate, a first separating structure and a semiconductor stacked layer structure. The substrate has a first surface. The first separating structure is formed on the first surface to divide the first surface into a plurality of independent regions. The minimum area of each of the regions is more than or equal to one square inch. The semiconductor stacked layer structure is disposed on the first surface and the first separating structure. The semiconductor wafer can prevent bowing of the semiconductor wafer during an epitaxial growth process so as to enhance quality of the semiconductor wafer.

Abstract: A method and apparatus for obtaining Global navigation Satellite System (GNSS) time in a GNSS receiver are provided. The following steps are included: obtaining a time relationship between a first clock signal and the received GNSS time; obtaining a first clock value of a second clock signal and an first associated clock value of the first clock signal at a first time point; calculating a first GNSS time corresponding to the first clock value of the second clock signal according to the first associated clock value and the time relationship; obtaining a second clock value of the second clock signal and an second associated clock value of the first clock signal at a second time point; and calculating a second GNSS time corresponding to the second associated clock value, according to the first GNSS time, the first clock value and the second clock value of the second clock signal.

Abstract: A method for obtaining GNSS time in a GNSS receiver includes: obtaining a time relationship between a first clock signal and the received GNSS time; obtaining a clock value B1 of a second clock signal and further obtaining an associated clock value A1 of the first clock signal to obtain a first pulse relationship at a first time point; calculating a GNSS time C1 corresponding to the clock value A1 according to the time relationship; obtaining a clock value B2 of the second clock signal and further obtaining an associated clock value A2 of the first clock signal to obtain a second pulse relationship at a second time point; and calculating a GNSS time C2 according to the GNSS time C1, the clock value B1, and the clock value B2. Exemplary values of A1, B1, C1, A2 B2, and C2 can be TTick1, FN1, TOW1, TTick2, FN2, and TOW2, respectively.

Abstract: A pipeline time-to-digital converter (TDC) is provided. The pipeline TDC includes a plurality of TDC cells. Each of the TDC cells includes a delay unit, an output unit and a determination unit. The delay unit receives a first clock signal and a first reference signal output from a previous stage TDC cell. The delay unit generates sampling phases in a period between a trigger edge of the first reference signal and a trigger edge of the first clock signal, and samples the first clock signal to obtain sampling values in accordance with the sampling phases. The output unit calculates the sampling values for outputting a conversion value. The determination unit uses and analyses the sampling values and the sampling phases for outputting time residue to a next stage TDC cell.

Abstract: A pipeline time-to-digital converter (TDC) is provided. The pipeline TDC includes a plurality of TDC cells. Each of the TDC cells includes a delay unit, an output unit and a determination unit. The delay unit receives a first clock signal and a first reference signal output from a previous stage TDC cell. The delay unit generates sampling phases in a period between a trigger edge of the first reference signal and a trigger edge of the first clock signal, and samples the first clock signal to obtain sampling values in accordance with the sampling phases. The output unit calculates the sampling values for outputting a conversion value. The determination unit uses and analyses the sampling values and the sampling phases for outputting time residue to a next stage TDC cell.

Abstract: A method for obtaining GNSS time in a GNSS receiver includes: obtaining a time relationship between a first clock signal and the received GNSS time; obtaining a clock value B1 of a second clock signal and further obtaining an associated clock value A1 of the first clock signal to obtain a first pulse relationship at a first time point; calculating a GNSS time C1 corresponding to the clock value A1 according to the time relationship; obtaining a clock value B2 of the second clock signal and further obtaining an associated clock value A2 of the first clock signal to obtain a second pulse relationship at a second time point; and calculating a GNSS time C2 according to the GNSS time C1, the clock value B1, and the clock value B2. Exemplary values of A1, B1, C1, A2 B2, and C2 can be TTick1, FN1, TOW1, TTick2, FN2, and TOW2, respectively.

Abstract: The present invention pertains to a liquid oxidizer of burner consisting of a hydrogen peroxide (H2O2) and a dihydrogen monoxide (H2O, water) . Wherein the proportion of the H2O2 is 30˜100% and the proportion of the H2O is 0˜70%. Whereby, the oxidizer is added into the burner and is subjected to decomposition or catalysis by heating or a catalyst so that it could be transformed into heating steam and gaseous oxygen. Accordingly, the oxidizer possessing the high oxidization accelerates the burning speed of blazing wastes within the burner, and the wastes and firing would be efficiently burnt away. Therefore, the burning effect is advanced, and the emission of carbon monoxide, unburnt hydrocarbon (UHC), and pollutants are certainly decreased.

Abstract: An input device has a body for receiving a circuit board therein. The body has a retaining device which is moved to secure or release a wireless receiver in or from an exterior-facing compartment in the body.

Abstract: A portable electronic apparatus includes a main body, a camera device, and a supplementary light device. The camera device and the supplementary light device are fixed on the main body. The supplementary light device includes a light module, a lens module, and a motor. The light module includes a circuit board, a light source, and a heat sink opposite to the light source. The lens module includes a lens barrel and a plurality of lenses received in the lens module. The motor drives the lens module to change the intensity distribution of the light from the light module.

Abstract: A method capable of increasing acquisition efficiency in a code division multiple access (CDMA) communication system includes receiving a first signal, generating a second signal by performing a Fourier transform operation for the first signal, determining a plurality of shift signals generated by shifting the second signal a first frequency each time, choosing a pseudo-random code from a plurality of pseudo-random codes and performing a Fourier transform operation for the chosen pseudo-random code, multiplying the plurality of shift signals with a result of performing the Fourier transform operation for the chosen pseudo-random code, and performing an inverse Fourier transform operation for the multiplication result, and determining a status of acquisition.

Abstract: An authorization system of a navigation device includes a first identification (ID) module and a second ID module. The first ID module is arranged to perform authorization for a first portion of the navigation device, and the second ID module is arranged to perform authorization for a second portion of the navigation device. The first and the second ID modules perform bidirectional authorization of the first and the second portions, and further determine behavior of the navigation device according to a result of the bidirectional authorization. An associated authorization method for controlling the navigation device is further provided.

Abstract: An input device has a body for receiving a circuit board therein. The body has a retaining device which is moved to secure or release a wireless receiver in or from an exterior-facing compartment in the body.

Abstract: A GNSS satellite signal handling method is disclosed. For a specific Doppler bin, when a peak is found, it is checked if the specific Doppler bin is polluted with interference by detection. If the detection result indicates that the specific Doppler bin is polluted with interference, a threshold, which is used to determine whether the actual signal peak is found or not, is then raised to a higher level, so as to increase the searching reliability. To detect interference, it is determined whether the specific Doppler bin is polluted by comparing a statistical value of correlation results of a plurality of code chip hypotheses with a reference or by checking if there are plural peaks existing in the power spectrum.

Abstract: An exposure apparatus for curing UV curable adhesive applied to an optical module includes a UV light source, a UV blocking member and a conveyer device. The UV light source emits UV light. The UV blocking member forming a UV light-tight region with the UV light source received therein. The conveyer for conveying the optical module through UV light-tight region to cure the UV curable adhesive by exposure to the UV light.