摘要:
In an access control system (8)--which comprises a transponder communication device (9) and at least two transmission coils (11, 12) connected to the transponder communication device (9), for receiving transponder signals, of which a first transmission coil (11) is associated with a first door (2), and which comprises a first activation device (18 associated with the first transmission coil (11) and the first door (12), and which comprises a first door opener (23) for the first door (2) and a logic device (45) for activating the first door opener (23)--the two transmission coils (11, 12) have arbitrarily large receiving ranges and the first transmission coil (11) and at least one further transmission coil (12) are followed by amplitude detector (34, 36) by which the amplitudes of the transponder signals supplied by the two transmission coils (11, 12) can be detected and the logic device is arranged after the amplitude detector (34, 36) and adapted to detect a condition in which the amplitude of the transponder signal supplied by the first transmission coil (11) is greater than the amplitude supplied by the second transmission coil (12), which first door opener (23) for the first door (2) can be activated the logic device (45) only upon detection of this condition.
摘要:
An electronic circuit (12, 12′) for a reader device (10, 10′) for contactless communication with a transponder (20) is disclosed. The electronic circuit (12, 12′) comprises a connection (13a, 13b) to an antenna (11) of said reader device (10, 10′), which antenna (11) is designed for receiving a radio signal (TRS) from said transponder (20). Furthermore, it comprises a receiving module (14), which is connected to the antenna connection (13a, 13b) and arranged for processing an input voltage (VI) from said antenna (11) representing said radio signal (TRS). To provide satisfactory operation of the receiving module (14) and to compensate a bad matching of the antenna circuit to the electronic circuit (12, 12′) and/or bad environmental conditions where the reader device (10, 10′) is operated, the electronic circuit furthermore comprises a control module (15, 15′). Said control module (15, 15′) is arranged to compare said input voltage (VI) to a reference value (VR) and to adjust a plant of said reader device (10, 10′) in such a manner that the level of said input voltage (VI) stays in a predefined range. The invention furthermore relates to a reader device (10, 10′) and a method of operating a reader device (10, 10′).
摘要:
An electronic circuit (12, 12′) for a reader device (10, 10′) for contactless communication with a transponder (20) is disclosed. The electronic circuit (12, 12′) comprises a connection (13a, 13b) to an antenna (11) of said reader device (10, 10′), which antenna (11) is designed for receiving a radio signal (TRS) from said transponder (20). Furthermore, it comprises a receiving module (14), which is connected to the antenna connection (13a, 13b) and arranged for processing an input voltage (VI) from said antenna (11) representing said radio signal (TRS). To provide satisfactory operation of the receiving module (14) and to compensate a bad matching of the antenna circuit to the electronic circuit (12, 12′) and/or bad environmental conditions where the reader device (10, 10′) is operated, the electronic circuit furthermore comprises a control module (15, 15′). Said control module (15, 15′) is arranged to compare said input voltage (VI) to a reference value (VR) and to adjust a plant of said reader device (10, 10′) in such a manner that the level of said input voltage (VI) stays in a predefined range. The invention furthermore relates to a reader device (10, 10′) and a method of operating a reader device (10, 10′).
摘要:
A vehicle has a steering wheel for steering the vehicle. The vehicle further has a transponder communication device for contactless communication with a transponder. The transponder communication device detects first control information that is stored in the transponder, compares the first control information with second control information that is stored in the transponder communication device, and generates a vehicle control signal if the first control information corresponds to the second control information. The transponder communication device receives the first control information in a transponder signal. The vehicle has a coil responsive to said transponder signal. The steering wheel has a peripheral ring portion. The coil is included within the peripheral ring portion of the steering wheel.
摘要:
A transponder communication device has an interrogation signal generator for generating an interrogation signal, a transmitter for transmitting the interrogation signal to a number of transponders, and a receiver for receiving answers signal from transponders. A transponder has an interrogation signal detector, an answer signal generator, and a state setting controller for setting a state of the transponder. The transponder communication device selects a single transponder from the number of transponders. First, the transponder communication device transmits an initial interrogation signal is transmitted to all transponders when the transponders are in an active state. In dependence of answer signals received from the transponders, the transponder communication device transmits a standby setting signal to at least one transponder at a time to instruct the transponders to adopt a standby state. In the standby state the transponders wait until a single other transponders has been selected. Thereafter all unselected transponders are selected by first setting the unselected transponders into an active state, from the standby state. Selected transponders are set into a passive state until all transponders have been selected. Thereupon, the active state is restored for all transponders.
摘要:
A contactless transponder device is provided with multiple ICs. A first IC includes a first contactless transponder interface circuit configured and arranged to respond to a contactless field by providing a first identifier of the first IC. A second IC includes a second contactless transponder interface circuit configured and arranged to respond to the contactless field by providing a second identifier of the second IC. A controller is configured and arranged to inhibit the first IC from responding to the contactless field.
摘要:
A method and system of sample aliquot storage for automated immunochemistry or chemistry instruments are provided. The method and system provide a sample aliquot storage unit having a sample storage wheel for storing sample vessels containing sample aliquots in a chilled enclosed environment, which are accessible by both a sample pipettor of a sample aliquoting station and a pick-and-place gripper. The pick-and-place gripper transports the sample vessels containing sample aliquots to multiple independent reagent pipetting stations respectively for sample aspiration of subsequent assay, and thereafter transports the sample vessels containing remaining sample aliquots back to the sample storage wheel to be stored in the chilled environment for reflex testing. When all the tests are completed, the pick-and-place gripper transports the sample vessels to a waste storage area.
摘要:
A transponder (1) and an integrated circuit (4) have at least one signal channel (5, 6, 7), each signal channel (5, 6, 7) having at least two signal processing stages (25, 26, 27, 28, 29, 30, 31) and at least one signal processing stage (26, 27, 29) configured such as to be activatable and deactivatable, while an associated bypass branch (32, 33, 34), which is also activatable and deactivatable, is provided for each activatable and deactivatable signal processing stage (26, 27, 29), and a microcomputer (36) and a control register (37) controllable by the microcomputer, (36) are provided, by means of which each activatable and deactivatable signal processing stage (26, 27, 29) and the associated bypass branch (32, 33, 34) are activatable and deactivatable in counterphase.
摘要:
A contactless transponder device is provided with multiple ICs. A first IC includes a first contactless transponder interface circuit configured and arranged to respond to a contactless field by providing a first identifier of the first IC. A second IC includes a second contactless transponder interface circuit configured and arranged to respond to the contactless field by providing a second identifier of the second IC. A controller is configured and arranged to inhibit the first IC from responding to the contactless field.
摘要:
A transmission and receiving device for contact data transmission between the device and a transponder. The transmission and receiving device has an antenna resonant circuit, a synchronous demodulator, a measuring unit, a control unit, and a reference signal generator. In operation, the device and the transponder are inductively coupled to each other through the antenna resonance circuit of the device and an antenna resonance circuit in the transponder. In response to an interrogation by the device, the transponder sends a load modulated digital signal to the device. The synchronous demodulator detects digital response data contained in the load modulated digital signal. The measuring unit measures a phase shift between a reference signal generated by the reference signal generator and a resonance signal generated in the antenna resonance circuit in the device by the sent load modulated digital signal. The control unit controls the synchronous demodulator such that the synchronous demodulator changes its demodulation mode between amplitude demodulation and phase demodulation, in dependence of the measured phase shift.