摘要:
A method of stimulating a subject having a denervated muscle and a corresponding functional muscle that are responsible for producing actions, such as blinking, on first and second portions, respectively, of the subject's body. The method includes determining whether the functional muscle has contracted, generating a contraction signal if it is determined that it has contracted, and causing the denervated muscle to contract following the generation of the contraction signal. Also, an apparatus for stimulating such a subject including one or more sensing devices operatively associated with the functional muscle and one or more stimulating devices operatively associated with the denervated muscle. One or more of the sensing devices generates one or more first signals in response to activity indicating functional muscle contraction. The one or more stimulating devices are made to cause the denervated muscle to contract in response to the generation of the first signals.
摘要:
Energy harvesting circuits and associated methods are provided that employ multiple antennas to optimize the amount of energy that is harvested while at the same time making efficient use of tag space. In some embodiments, matching networks are chosen in a manner that optimizes the DC energy that is created from the harvesting process. In other embodiments, phase shifts are introduced into the received signals to allow the signals to be more efficiently combined after they are rectified.
摘要:
An energy harvesting circuit has an active automatic tuning circuit to search for broadcast frequencies in a band of interest and selecting only those broadcast signals received with sufficient RF strength to be used in energy harvesting. This circuit would provide power storage devices with a circuit that has a means to select the ambient RF that can maximize or enhance the performance of an RFID circuit by increasing the amount of energy for harvesting. This automatic tuning would enable a power storage devices charger circuit to move from location to location without manual tuning of the circuit and increase the effective range of an RFID circuit.
摘要:
The present invention provides apparatus and an associated method for remotely energizing power storage devices. Energization may preferably be effected through the use of RF energy within frequencies of the wireless fidelity standards. The remote station preferably has at least one antenna having an effective area greater than its physical area. The invention may advantageously be used on wireless fidelity products which are energized by the power storage device.
摘要:
A power management method for a transponder having a plurality of circuits including at least a first circuit having a first active state requiring at least a first power level, and a second circuit having a second active state requiring at least a second power level greater than the first power level includes receiving a reader device signal in the first circuit, determining in the first circuit, based on information included in the reader signal, whether the reader signal requires a circuit other than the first circuit to operate, and causing the first circuit to provide a wake-up signal and the reader signal to the second circuit if it is determined that the reader signal requires a circuit other than the first circuit to operate. The wake up signal causes the second circuit to move from an inactive state to the second active state.
摘要:
Various methods and apparatus for providing deep brain stimulation for the treatment of diseases such as Parkinson's Disease that do not require an onboard power supply that is implanted in the patient's body. Power may be supplied from outside of the body by, for example, near-field inductive coupling with an external power supply provided in, for example, a headgear worn by the patient. Power may also be supplied by providing an antenna for harvesting ambient energy, such as ambient RF energy, and converting it into DC power. In addition, the methods and apparatus provide for remote, wireless programming of the parameters that specify the nature of electrical pulses provided to the brain via probes implanted in the brain.
摘要:
A method of generating a normalized matrix for use in determining one or more read accuracies of an RFID tag at selected points in space relative to a transmitter associated with the RFID tag. The method may further include using the normalized matrix to determine a particular read accuracy of the RFID tag at a particular point in space relative to the transmitter. Also, a method of generating a power scaling factor for determining the read accuracy of an RFID tag.
摘要:
A method of powering a wireless autonomous device having energy harvesting circuitry, on-board electronic circuitry, and RF transmitter circuitry using an RF transmitting profile that includes a plurality of RF pulses. That same profile may also be used to simultaneously communicate information to the wireless autonomous device in a number of ways, including different encoding schemes. A system including a plurality of wireless autonomous devices that employs the methods is also provided. Further, a method of designing a wireless autonomous device system and/or a wireless autonomous device to be used therein is provided that employs an equivalent circuit for the wireless autonomous device that is in the form of a lumped parameter RLC circuit with an energy source.
摘要:
Various methods and apparatus for providing deep brain stimulation for the treatment of diseases such as Parkinson's Disease that do not require an onboard power supply that is implanted in the patient's body. Power may be supplied from outside of the body by, for example, near-field inductive coupling with an external power supply provided in, for example, a headgear worn by the patient. Power may also be supplied by providing an antenna for harvesting ambient energy, such as ambient RF energy, and converting it into DC power. In addition, the methods and apparatus provide for remote, wireless programming of the parameters that specify the nature of electrical pulses provided to the brain via probes implanted in the brain.
摘要:
Methods and arrangements for adjusting and maintaining a lateral or radial position of a nozzle such as a nozzle in an ink jet print head. Since the alignment of an ink stream issuing from a nozzle in ink jet applications is usually critical in that the ink jet stream must be directed to a specific target area, described herein are arrangements for enabling the nozzle and issuing ink stream to be precisely aligned for calibration and maintenance purposes. In addition the adjustment is simplified and once made it stays in position. Similar principles can be applied to other types of nozzles and arrangements wherein another type of fluid, or even light, is issued out.