Abstract: The present invention relates a system and method to allow users to train different joints of a limb in different planes. The rotation of the system can be driven by a motor to assist or resist the motion for training purpose. By the present invention, the user can use the device to switch training between the vertical and horizontal planes, without changing the device and any module. The system is also adjustable to meet different users' body sizes.

Abstract: The present invention relates a system and method to allow users to train different joints of a limb in different planes. The rotation of the system can be driven by a motor to assist or resist the motion for training purpose. By the present invention, the user can use the device to switch training between the vertical and horizontal planes, without changing the device and any module. The system is also adjustable to meet different users' body sizes.

Abstract: A receiver is adapted to receive one or more wireless signals, while also being able to provide a barrier actuation signal to a barrier operator over a signaling line. The barrier operator may then be adapted to actuate a barrier in response to receiving the barrier actuation signal. The signaling line is further used to provide power from the barrier operator to the receiver. In one embodiment, the barrier operator is a garage door opener and the signaling line is coupled to the receiver and a garage door wall button. Alternatively, the receiver may replace the garage door wall button of the barrier operator.

Abstract: A transmitter that is programmable to transmit one or more identification or device codes, using one or more transmission formats, at one or more transmission frequencies to control one or more respective devices. In one embodiment, the transmitter includes a controller and memory for storing transmission values and corresponding transmission frequencies, where the transmission values may include multiple device codes and transmission formats. A subset of the transmission values and corresponding transmission frequencies stored in the memory are assigned to or associated with one or more actuation switches upon matching the transmission values in a sampled signal to a set of transmission values stored in memory. In one embodiment, the transmission values may correspond to either a fixed-code transmission format or a rolling-code transmission format.

Abstract: A transmitter for operating a rolling code receiver is disclosed. A fixed code transmitter is capable of operating a plurality of different receivers (including rolling code receivers) by updating the transmitter's volatile memory with a set of one or more fixed codes stored in a non-volatile memory of the transmitter. In one embodiment, the transmitter's updatable nonvolatile memory is updated with a code or codes necessary for operating a user-selected receiver. In another embodiment, activating the transmitter will cause it to transmit the code(s) previously stored in the updatable nonvolatile memory based on the user receiver selection.

Abstract: Disclosed is a system and method for proximity control of a barrier comprising a stationary wireless signal receiving device and a mobile transmitting device. The wireless signal receiving device may monitor at least one transmitting device within a predetermined coverage area and may be a radio frequency receiver or a spread spectrum receiver located near the barrier. In one embodiment, the transmitter device emits a control signal that is received by the receiving device when the transmitter is within a reception range. In one embodiment, the control signal includes transmitter identification information, directional information and position information. In another embodiment, the barrier is closed only after a predetermined delay has lapsed.

Abstract: Disclosed is a system and method for proximity control of a barrier comprising a stationary wireless signal receiving device and a mobile transmitting device. The wireless signal receiving device may monitor at least one transmitting device within a predetermined coverage area and may be a radio frequency receiver or a spread spectrum receiver located near the barrier. In one embodiment, the transmitter device emits a control signal that is received by the receiving device when the transmitter is within a reception range. In one embodiment, the control signal includes transmitter identification information, directional information and position information. In another embodiment, the barrier is closed only after a predetermined delay has lapsed.

Abstract: Disclosed is a system and method for proximity control of a barrier comprising a stationary wireless signal receiving device and a mobile transmitting device. The wireless signal receiving device may monitor at least one transmitting device within a predetermined coverage area and may be a radio frequency receiver or a spread spectrum receiver located near the barrier. In one embodiment, the transmitter device emits a control signal that is received by the receiving device when the transmitter is within a reception range. In one embodiment, the control signal includes transmitter identification information, directional information and position information.

Abstract: Disclosed are systems and methods for operating a barrier. In one embodiment, a door operator can be opened or closed by triggering either an internal device (e.g., wall button) or an external device. In one embodiment, if an obstacle is detected when the door is opening or closing, the door will either stop or swing in the reverse direction. In yet a further embodiment, the door operator is implemented using an alternating current (AC) synchronous motor.