摘要:
An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands, responses, and notification are constructed and transmitted between the RFID reader and the RFID reader control unit.
摘要:
An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands, responses, and notification are constructed and transmitted between the RFID reader and the RFID reader control unit.
摘要:
An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands, responses, and notification are constructed and transmitted between the RFID reader and the RFID reader control unit.
摘要:
An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands, responses, and notification are constructed and transmitted between the RFID reader and the RFID reader control unit.
摘要:
A multiple local oscillation frequency generation apparatus which can generate local oscillation frequencies in at least two frequency bands and a wireless transceiver having the multiple local oscillation frequency generation apparatus are provided. The local oscillation frequency generation apparatus includes: an oscillation unit which comprises a plurality of VCOs that provide at least two local oscillation signals having different frequencies for modulating/demodulating RF signals in at least two frequency bands; a PLL which locks the frequencies of the local oscillation signals provided by the VCOs; a first switch which selects one of the local oscillation signal provided the VCOs according to a frequency band of a RF signal; a frequency conversion unit which converts the frequency of the selected local oscillation signal; and a phase shift unit which generates I-phase and Q-phase local oscillation signals by shifting the phase of a signal output by the frequency conversion unit.
摘要:
Disclosed is an optical image stabilizer assembly for a camera lens. The optical image stabilizer includes a main frame, a driving frame, a camera device, a pair of driving permanent magnets, a pair of coils, and at least one slidable bearing between the main frame and the driving frame. The driving frame moves in at least one direction within the main frame. The camera device is mounted on the driving frame. The pair of driving permanent magnets is mounted on one of the main frame and the driving frame. The pair of coils is mounted on the other of the main frame and the driving frame and faces the pair of driving permanent magnets. The one slidable bearing is interposed between an inner sidewall of the main frame and an outer sidewall of the driving frame to facilitate movement of the driving frame. The driving frame moves through interaction between an electromagnetic force generated by application of a current to the coils and a magnetic force of the driving permanent magnets.
摘要:
Disclosed herein is an electromagnetic apparatus for automatically and selectively supplying and shutting off fluid. The electromagnetic apparatus includes a frame unit, a through unit, a coil unit, a rotor, a casing, a shaft and a casing. The frame unit is coaxially contained in the piping or a housing forming the flow path of a fluid. The through unit has one or more through holes to form one or more flow paths through the frame unit. The coil unit is placed in the frame unit to generate an electromagnetic force. The rotor is placed to face the frame unit to selectively open and close the flow paths through interaction with the electromagnetic force generated in the coil unit. The shaft supports the rotor, and a casing supports the frame unit and forms the appearance of the apparatus.
摘要:
An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands, responses, and notification are constructed and transmitted between the RFID reader and the RFID reader control unit.
摘要:
An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands, responses, and notification are constructed and transmitted between the RFID reader and the RFID reader control unit.
摘要:
A transceiver device capable of calibration, and a calibration method used by the transceiver device. The transceiver device includes a reference transceiver, a plurality of remaining transceivers, and a plurality of transmission calibration paths connecting the remaining transceivers to the reference transceiver for transmission calibration of the remaining transceivers. An envelope detector included in the reference transceiver is shared with the remaining transceivers. When implementing a multiple input multiple output (MIMO) transceiver in a single chip, the chip size and manufacturing cost of the MIMO transceiver device can be substantially reduced.