Abstract: A lighting-system control method applied to the lighting-system including a light source and an ultrasonic transmitting-and-receiving device is provided. The method comprises steps of: determining a distance between an object and the ultrasonic transmitting-and-receiving device by the ultrasonic transmitting-and-receiving device according to a flight time of an ultrasonic-wave; changing a first light property of the light source when the object is detected moving toward the ultrasonic transmitting-and-receiving device; and changing a second light property of the light source when the object is detected moving away from the ultrasonic transmitting-and-receiving device.

Abstract: The present invention discloses an ultrasonic apparatus with an adjustable horn. The ultrasonic apparatus comprises a transmission device, a horn and an ultrasonic transceiver device. The horn and the transmission device are geared by a helical gear. The ultrasonic transceiver device is connected to the end of the helical gear. When the transmission device moves the horn to a first position, the ultrasonic transceiver device is applied for on/off control; while the transmission device moves the horn to a second position, the ultrasonic sensor is applied for digital control.

Abstract: A control method for use with a lighting system is provided. The lighting system includes a light source and an ultrasonic transceiver. The control method includes steps of: measuring the time of an ultrasonic signal emitted from the ultrasonic transceiver and reflected by the object to reach the ultrasonic sensor to obtain a time of flight; calculating a distance between the object and the ultrasonic transceiver according to the time of flight; defining at least one control region according to the distance; and moving the object to the control region, thereby performing a controlling operation corresponding to the control region and adjusting an optical characteristic.

Abstract: A solid state drive includes a flash memory, a cache memory, and a controlling unit. The solid state drive is in communication with a host. The flash memory includes a plurality of blocks, wherein each of the blocks has a plurality of pages. The cache memory includes a plurality of cache units. The cache units are allocated into a plurality of groups according to operating statuses of respective cache units. The controlling unit is in communication with the host, the flash memory and the cache memory. Under control of the controlling unit, a write data from the host is temporarily stored in the cache memory so as to be written into the flash memory, or a read data from the flash memory is temporarily stored in the cache memory so as to be provided to the host.

Abstract: An optical disk drive including a case, a traverse, a guide rod, an optical pick-up head and at least a locking member is provided. The traverse is disposed in the case and includes at least a cantilever part and at least a locking hole. The cantilever part protrudes from a carrying surface of the traverse and is integrated with the traverse. The guide rod leans against a bearing end of the cantilever part. The optical pick-up head is slidably disposed on the guide rod. The locking member includes a leaning part and a locking part. The locking part is locked into the locking hole and the leaning part presses an upper side of an end of the guide rod for making the bearing end generate a bending displacement toward the carrying surface through the guide rod.

Abstract: A solid state drive and a method for constructing a logical-to-physical table of the solid state drive are provided. Once the solid state drive is powered on again, the logical-to-physical table and the bitmap table are directly read from the flash memory. Then, the blocks whose history numbers are higher than the reference history number are searched from the flash memory. According to the history numbers in an ascending order, the physical-to-logical data in the blocks are sequentially reconstructed into the logical-to-physical table and the bitmap table of the mapping unit. Consequently, the logical-to-physical table and the bitmap table can be quickly reconstructed.

Abstract: A method for controlling a cache memory of a solid state drive is provided. The solid state drive has a flash memory. The flash memory has a plurality of blocks, wherein each block has a plurality of pages. The method includes the following steps. Firstly, a refreshed data corresponding to a part of original data in a specified page of the flash memory is received and stored into a first cache unit. Then, the original data is read from the specified page, wherein an unrefreshed part of the original data is stored into the first cache unit, and a to-be-refreshed part of the original data is stored into a second cache unit. Afterwards, the refreshed data and the unrefreshed part of the original data in the first cache unit are stored into a blank page of the flash memory.

Abstract: An optical detection apparatus which is capable of measuring a sample is provided. The optical detection apparatus includes a plurality of light emission units, a light receiving unit, a driving unit, and an analyzing unit. Each of the light emission units is capable of emitting a light beam. The light receiving unit is capable of receiving the light beam passing through the sample and is capable of converting the received light beam to an electrical signal. The driving unit is capable of changing the relative position of the light emission units and the sample. The analyzing unit is electrically connected to the light receiving unit and is capable of measuring a property of the sample by using the electrical signal. A number of the light receiving unit is less than a number of the light emission units. An optical measurement system including the optical detection apparatus is also provided.

Abstract: A combiner positioning system for a head-up display (HUD) is provided. The positioning system includes a combiner holder, a pair of control discs, a pair of levers and a driving unit. The combiner holder is connected to the combiner, the levers are connected to the combiner holder and the control discs, and the driving unit is connected to the control discs. When the driving unit drives the control discs to rotate, the levers moves the combiner holder and the combiner. The positioning system enables the combiner's first movement from parking position (storage position) to operating position (display position) and a second movement for angular fine adjustment of the combiner is also enabled after reaching the operating position.

Abstract: A tray locking device of an optical disc drive is adapted to lock and release a tray. The optical disc drive has an optical head engaged to a lead screw and driven to be moved by the lead screw. The tray locking device includes: a pushing member, disposed on the optical head; a first stop portion, disposed on the tray; a latching hook, adapted to latch and release a pin; and a transmission assembly, disposed between the pushing member and the latching hook and having a lever element and a weight block, wherein the lever element is movably disposed on the tray and has a second stop portion, and the first stop portion and the second stop portion can be coupled with each other.

Abstract: An operating method adapted in an ultra-sound sensor is provided. The method includes the steps of emitting an ultra-sound wave, receiving a crosstalk signal within a crosstalk measuring window, determining whether the crosstalk signal is larger than a crosstalk threshold and triggering a crosstalk application if the crosstalk signal is smaller than the crosstalk threshold.

Abstract: An ultrasonic system including an ultrasonic transmitter and an ultrasonic receiver is provided. The ultrasonic transmitter emits a transmission signal, which includes a synchronous burst and multiple data bursts. The ultrasonic receiver receives a synchronous echo, and determines whether the amplitude of the synchronous echo is larger than a first threshold. If the amplitude of the synchronous echo is larger than the first threshold, then the ultrasonic receiver interprets the multiple data echoes corresponding to the data bursts to obtain a digital signal.

Abstract: An optical disc drive is provided. The optical disc drive includes a housing having a protruding pin, an optical head engaged to a lead screw, a tray slidably disposed in the housing and a tray locking device disposed on the tray. The tray locking device includes a pushing member, wherein the pushing member and the optical head are driven by the lead screw to move, a latching hook used to latch and release the protruding pin, and a transmission assembly disposed between the pushing member and the latching hook. The transmission assembly has a driving portion disposed on a moving path of the pushing member, wherein the pushing member pushes the driving portion so that the transmission assembly is actuated and drives the latching hook to release the protruding pin.

Abstract: A garbage collection control method for a solid state drive is provided. The garbage collection control method includes the following steps. Firstly, a total number of releasable spaces in a plurality of data-containing blocks of a flash memory is calculated and defined as A. A total number of spaces in a plurality of blank blocks of the flash memory is calculated and defined as B. If the ratio B/A is smaller than a first threshold value, a garbage collection is performed. During the garbage collection is performed, if the ratio B/A is larger than a second threshold value, the garbage collection is ended. The first threshold value is smaller than the second threshold value.

Abstract: A data transmission system includes a home storage device, a cloud storage device, and a portable electronic apparatus. The home storage device is in communication with a network, wherein a plurality of files and a corresponding file list are stored in the home storage device. The cloud storage device is in communication with the network for receiving the file list and a first portion of each file from the home storage device. The portable electronic apparatus is in communication with the network. After a specified file is selected from the file list provided by the cloud storage device through the portable electronic apparatus, the first portion of the selected file from the cloud storage device is received by the portable electronic apparatus, and a second portion of the selected file from the home storage device is received by the portable electronic apparatus.

Abstract: A flash memory includes a first block with a first erase count and a second block with a second erase count. A first data corresponding to a first history index number is stored in the first block. A second data corresponding to a second history index number is stored in the second block. A controlling unit is connected with the flash memory, and includes a history index number generator for generating a plurality of history index numbers, which at least comprise the first history index number and the second history index number. According to the first erase count, the first history index number, the second erase count and the second history index number, the controlling unit determines whether a data swapping operation for exchanging the first data and the second data has to be performed or not.

Abstract: A lighting system comprising a lamp arranged to transform electricity into a light beam having properties such as intensity, colour, colour temperature, direction and beam cone angle; a light control means arranged to adjust said light beam properties; at least one ultrasonic transmitter arranged to transmit ultrasonic signals; a plurality of spaced apart ultrasonic receivers arranged to receive reflected ultrasonic signals; and a processing means arranged to determine for each of said receivers time-of-flight signals representing the time differences between said transmitted signals from said at least one transmitter and the associated received reflected ultrasonic signals from said receiver, and to send control signals to said light control means in dependence of the combination of said time-of-flight signals for each of said receivers. Said ultrasonic transmitter and one of said ultrasonic receivers are arranged on a rotating means for moving along the circumference of said lamp.

Abstract: A flash memory device connected to a host includes: a flash memory; and a control circuit comprising a first error correcting code unit and a second error correcting code unit. The data length of a redundancy generated by the second error correcting code unit is longer than the data length of a redundancy generated by the first error correcting code unit. The first error correcting code unit is adopted to process with a data transmitted to the flash memory from the host when a damage risk of the flash memory is lower than a specific value; and the first and second error correcting code units are adopted to process with the data transmitted to the flash memory from the host when the damage risk of the flash memory is higher than the specific value.

Abstract: A solid state drive includes a plurality of dies. The dies are divided into first-portion dies and second-portion dies. The first-portion dies are located at a user area. The second-portion dies are located at a reserved area. The solid state drive is in communication with a host. The data storing method of the solid state drive includes the following steps. Firstly, if the host generates a plurality of write data to the solid state drive, the plurality of write data are stored into the reserved area. If there is not accessing action between the host and the solid state drive and if the write data are in the reserved area, the write data are stored into the user area. Afterwards, error correction codes corresponding to the write data in the user area are calculated and stored into the reserved area.

Abstract: A controlling method is provided for preventing a solid state drive from being operated at a high temperature. The solid state drive includes a controlling circuit, a temperature detecting circuit and a plurality of dies. The dies are divided into n groups and accessed by the controlling circuit through n IO buses. The controlling circuit is in communication with the temperature detecting circuit for detecting a temperature of the solid state drive. The controlling method includes the following steps. Firstly, a judging step is performed to judge whether the temperature of the solid state drive is higher than a predetermined temperature. If the temperature of the solid state drive is higher than the predetermined temperature, the frequencies of n clock signals in the n IO buses are decreased.