Abstract: Techniques and devices are described for generating modified audio signals. The techniques include receiving an audio signal at a device, tracking a movement of the device, generating a first modified audio signal to spatialize the audio signal, generating a second modified audio signal to spatialize the audio signal, causing the first modified audio signal to be rendered using a first speaker of the device, and causing the second modified audio signal to be rendered using a second speaker of the device. In some cases, the first modified audio signal is generated using a first head-related transfer function (HRTF) and the movement of the device, and the second modified audio signal is generated using a second HRTF and the movement of the device, where the second HRTF is different from the first HRTF. Numerous variations and configurations will be apparent in view of this disclosure.

Abstract: A spring assembly is mounted on a crankshaft for a vehicle. A selector mechanism for the spring assembly selectively connects the spring assembly to the crankshaft. The selector mechanism is engaged in a first position to connect the spring to the crankshaft when the engine is shut-off such that the crankshaft winds the spring as it rotates. The selector mechanism is then engaged in a second position such that the spring applies a rotational force to re-start the engine. A method for braking the engine includes engaging the crankshaft with the torsion spring and winding the torsion spring with rotation of the crankshaft until the tension within the torsion spring is greater than the force applied to the crankshaft.

Abstract: A spring assembly is mounted on a crankshaft for a vehicle. A selector mechanism for the spring assembly selectively connects the spring assembly to the crankshaft. The selector mechanism is engaged in a first position to connect the spring to the crankshaft when the engine is shut-off such that the crankshaft winds the spring as it rotates. The selector mechanism is then engaged in a second position such that the spring applies a rotational force to re-start the engine. A method for braking the engine includes engaging the crankshaft with the torsion spring and winding the torsion spring with rotation of the crankshaft until the tension within the torsion spring is greater than the force applied to the crankshaft.

Abstract: The invention disclosed provides an apparatus and method for a surveillance camera having various attributes which make it advantageous in security applications. The invention allows for the quick adjustment of camera angle or the removal of the camera frame assembly, supplies a solution for video distorting caused by ground looping, and can provide a video signal to devices which record, store, or transmit images via RF to a monitor in a remote location. The apparatus includes a shock absorbing functionality and a decoy plastic faceplate including a card reader or biometrics reader. The plastic faceplate can be imprinted with a design, message, and heat and/or pressure sensitive paint. The camera frame and mounting bracket are assembled together to allow easy adjustment of the camera angle through an arc path of up to 120° without dismantling the camera frame assembly.

Abstract: The invention disclosed provides an apparatus and method for a doorframe mounted covert video surveillance system. The surveillance system can be implemented in any location where monitoring passage through a door is desired. The invention allows for the quick adjustment of camera angle or the removal of the camera frame assembly, supplies a solution for video distorting caused by ground looping, and can provide a video signal to devices which record, store, or transmit images via RF to a monitor in a remote location. The apparatus includes a mounting bracket, a camera frame assembly, a non-conducting rubber-like grommet, a miniaturized camera, shock absorbing functionality, and a decoy plastic faceplate including a card reader or biometrics reader. The mounting bracket can be mounted on, in, or near a doorframe or similar structure without substantial modification to the doorframe or structure.