摘要:
An exoskeleton (100) includes two torque generators (116, 118), two thigh links (104,106), and a supporting trunk (112) rotatably coupled to the thigh links (104, 106). When a wearer bends forward in the sagittal plane such that the supporting trunk (112) extends beyond a predetermined angle A with respect to vertical, at least one of the torque generators (116, 118) imposes a resisting torque between the supporting trunk (112) and a corresponding thigh link (104, 106), thus imposing a force onto a wearer's trunk and thighs to aid in supporting the wearer in a bent position. The exoskeleton (100) may include an active or passive means (116, 134) for actuating the torque generators (116, 118). When the supporting trunk (112) does not extend beyond the predetermined angle A, the torque generators (116, 118) do not impose resisting torques between the supporting trunk (112) and the thigh links (104, 106) during the entire range of motion of the thigh links (104, 106), thus enabling a wearer to walk, run, and sit without constraint while in a substantially upright position.
摘要:
An exoskeleton (100) includes two torque generators (116, 118), two thigh links (104,106), and a supporting trunk (112) rotatably coupled to the thigh links (104, 106). When a wearer bends forward in the sagittal plane such that the supporting trunk (112) extends beyond a predetermined angle A with respect to vertical, at least one of the torque generators (116, 118) imposes a resisting torque between the supporting trunk (112) and a corresponding thigh link (104, 106), thus imposing a force onto a wearer's trunk and thighs to aid in supporting the wearer in a bent position. The exoskeleton (100) may include an active or passive means (116, 134) for actuating the torque generators (116, 118). When the supporting trunk (112) does not extend beyond the predetermined angle A, the torque generators (116, 118) do not impose resisting torques between the supporting trunk (112) and the thigh links (104, 106) during the entire range of motion of the thigh links (104, 106), thus enabling a wearer to walk, run, and sit without constraint while in a substantially upright position.
摘要:
The subject of this patent is a system to generate RF frequency hopped signals that can be used to test radio receivers over the range of their signal specifications. The hop sequence and symbols in the signal is decoded from signals transmitted by the same or different radio of the same specification. The system can set various signal parameters to any prescribed value. These parameters include carrier frequency error, bit rate error, rise and fall times, amplitude ripple and roll off, modulation depth, nonlinearities, burst duration, burst start time and burst interval. Signal interference can be added to the signal including tones, other signals, noise and other signals of the same as the test radio. Similarly other communications equipment can be tested by the combination of receiving and demodulating a transmitted and regenerating the signal with the same symbols with specified signal parameters.
摘要:
A telecommunications switch receives a lawful intercept message identifying a target device and updates a subscriber database according to the message. Upon an origination of a call associated with the target device, the switch enables a lawful intercept detection point associated with the call. When the detection point occurs, the switch transmits a message indicating the occurrence of the detection point. The switch may include a service control point co-located with the switch. The lawful intercept message may be received from, and the message indicating the occurrence of the lawful intercept detection point may be transmitted to, a lawful intercept delivery function. Upon an origination of a call associated with the target device, the switch may also cause a media gateway to transmit call content from the call to the lawful intercept delivery function.
摘要:
A signal analyzer to characterize the RF signal transmitted by a frequency hopping radio transmitter. The transmitted signal is analyzed while hopping across a broad frequency band without knowledge of the hop frequencies, timing or signal bandwidth. A wide range of signal parameters are measured on the dehopped signal to characterize the radio performance and the compliance to the radio specifications.
摘要:
A switch for use in a telecommunication network is provided that includes a plurality of call control agent functions and a call control function. At least two of the call control agent functions are associated with different signaling protocols. The signaling protocols define a plurality of signaling control primitives. The call control function is operable to control routing of telephone calls through the switch. The call control function is accessed using an application programming interface (API). The API includes a plurality of classes defining objects representing the signaling control primitives.