摘要:
A charge pump is incorporated into circuitry of an RFID tag. The charge pump takes advantage of an antenna voltage phase to eliminate the need for a charge pump clock generator. Placement of the charge pump in the RFID circuitry reduces the number of pump stages and eliminates drivers used in each pump stage. In some implementations, an RFID tag comprises antenna circuitry, including a tuned antenna, for receiving an RF signal. Voltage conversion circuitry in the RFID tag is coupled to the antenna circuitry and operable for converting a varying magnetic field produced in the antenna to a voltage source. A charge pump is coupled to output voltage signals of the antenna circuitry which provide the charge pump with a high starting reference voltage and a two phase pump clock.
摘要:
A charge pump is incorporated into circuitry of an RFID tag. The charge pump takes advantage of an antenna voltage phase to eliminate the need for a charge pump clock generator. Placement of the charge pump in the RFID circuitry reduces the number of pump stages and eliminates drivers used in each pump stage. In some implementations, an RFID tag comprises antenna circuitry, including a tuned antenna, for receiving an RF signal. Voltage conversion circuitry in the RFID tag is coupled to the antenna circuitry and operable for converting a varying magnetic field produced in the antenna to a voltage source. A charge pump is coupled to output voltage signals of the antenna circuitry which provide the charge pump with a high starting reference voltage and a two phase pump clock.
摘要:
Process for preparing salts K+ X−, where K+ is an organic cation and X− is an anion, by anion exchange, wherein a salt K+ Y−, where K+ is as defined above and Y− is an organic anion having a carboxylate, sulfonate or sulfate group, is used as starting material and K+ Y− is reacted with a hydrogen acid HX whose pKa is less than the pKa of the hydrogen acid HY and after the reaction, the salt K+ X− obtained and the hydrogen acid HY obtained are present in separate liquid phases.
摘要:
An apparatus and method for controlling the end tidal partial pressure of a gas X in a subject's lung, and to the use of such an apparatus and method for research, diagnostic and therapeutic purposes, wherein the method consists of: obtaining input of a series of logistically attainable PetX values for a series of respective breaths: determining an amount of gas X required to be inspired by the subject in an inspired gas to target the PetX for each of said respective breaths: and controlling a gas delivery device to deliver the amount of gas in a volume of gas delivered to the subject in each of said respective breaths to target the respective PetX for that breath.
摘要:
A floating point processor unit includes a shift amount calculation circuit within a normalizer portion of the floating point unit, wherein the shift amount calculation circuit is utilized to compute the normalizer shift amount for a log estimate instruction that runs as a pipelinable instruction.
摘要:
Process for preparing polymeric, ionic compounds comprising imidazolium groups, wherein an α-dicarbonyl compound, an aldehyde, at least one amino compound having at least two primary amino groups, if appropriate an amino compound having only one primary amino group and a protic acid, where the carbonyl groups of the α-dicarbonyl compound and of the aldehyde may, if appropriate, also be present as hemiacetal, acetal or hemiketal or ketal, are reacted with one another.
摘要:
The invention relates to n optoelectronic sensor having a transmitter (12) for the transmission of a transmitted light beam (22) which is extended perpendicular to the detection direction by means of an optical transmission system (24) and a receiver (14) for the reception of received light (28) and for the provision of an electronic received signal, and an evaluation unit (16) for the recording of the received signal and for the outputting of an object detection signal, wherein at least the transmitter (12) and the optical transmission system (24) are arranged in a sensor housing (18) having a front screen (20). To provide an improved sensor which is inexpensive and nevertheless generates a linear transmitted light of high quality, it is proposed that the front screen (20) is overlaid with patterns (40) of light absorbing material for light intensity homogenization in a region (21S) through which the transmitted light (22) passes and/or in a region (21E) through which the received light (28) passes.
摘要:
A method for converting a signed fixed point number into a floating point number that includes reading an input number corresponding to a signed fixed point number to be converted, determining whether the input number is less than zero, setting a sign bit based upon whether the input number is less than zero or greater than or equal to zero, computing a first intermediate result by exclusive-ORing the input number with the sign bit, computing leading zeros of the first intermediate result, padding the first intermediate result based upon the sign bit, computing a second intermediate result by shifting the padded first intermediate result to the left by the leading zeros, computing an exponent portion and a fraction portion, conditionally incrementing the fraction portion based on the sign bit, correcting the exponent portion and the fraction portion if the incremented fraction portion overflows, and returning the floating point number.
摘要:
A floating point processor unit includes a shift amount calculation circuit within a normalizer portion of the floating point unit, wherein the shift amount calculation circuit is utilized to compute the normalizer shift amount for a log estimate instruction that runs as a pipelinable instruction.
摘要:
A radiation therapy system and method, especially for brachytherapy, monitors and verifies dose delivered at a plurality of points at or near the region to be irradiated, integrating verification with radiation delivery. In one procedure, mapping is used to determine the shape and location of the region to be irradiated. A treatment plan is developed using the mapping information and a dose prescription. As radiation is delivered to the target region internally, preferably using an electronic radiation source, the dose received at plural points is monitored and continually fed to a central processor. As needed based on feedback, the system modifies the treatment plan and delivery of radiation accordingly, to arrive substantially at the prescribed dose at all locations in the region. In a modified procedure the treatment is done according to a prescription dose but without a treatment plan by multiple iterations of source pullback and feedback and analysis of dose received in the tissue. Source radiation levels and/or pattern and dwell are modified for each successive iteration and preferably for different dwell points in an iteration.