Abstract: The invention pertains to the alignment of chucks used in the web handling industry. The device includes specialized mounting features to align a light beam with a given chuck. Two of these assemblies are positioned such that each light beam aligns with the other. In this orientation the two chucks are aligned.

Abstract: A method and system for performing automatic plug detection are disclosed. When a plug is inserted into an audio jack, the plug may be detected. Detection may occur at power up or upon insertion. When a plug is detected, a determination may be made as to whether the plug is a stereo plug or a mono plug. If the plug is determined to be a mono plug, audio information may be transmitted substantially using a first audio channel, such as a left audio channel. In contrast, if the plug is determined to be a stereo plug, audio information may be transmitted using the first audio channel and a second audio channel, such as a right audio channel.

Abstract: Methods for synchronously transmitting control data from a first device to a second device in a streaming data network and for transferring non-addressed data through a streaming data network are disclosed. A first device may insert an identifier identifying a second device into data packets transmitted over a streaming data network. A first acknowledgement is received at the first received from the second device at the first device. At least a portion of the control data may be inserted into the data packets at least until a second acknowledgement is received at the first device. The previous step may be repeated with additional portions of the of the control data until all control data has been transmitted to the second device. The identifier may then be removed from the data packets at least until a third acknowledgment is received at the first device.

Abstract: A data transmission and distribution system includes a series of payloads, where each of the payloads is formed from bits of audio or video information, and where different levels of protection are applied to different sets of bits in each payload. The system divides the bits associated with each payload into high priority bits and low priority bits and forms a group of check bits for each payload by applying an error correction algorithm to the high priority bits in the payload. The system also forms each payload from a first set of high priority bits, check bits and low priority bits and a redundant set of high priority bits and check bits and transmits the payloads formed from the first set of the high priority bits, the check bits, the low priority bits and the redundant set of high priority bits and check bits.

Abstract: Methods and systems for forming data packets from a plurality of devices are disclosed. A first data slot may be assigned to a device that receives first data from its input interface. A second data slot may be assigned to a second device that receives second data from its input interface. The first data and the second data may be converted into different or similar digital formats. A packet, including the converted first data in the first data slot may be transmitted from the first device and received at the second device. The second device may update the packet to include the converted first data in the first data slot and the converted second data in the second data slot. The second device may then transmit the updated packet. A device may copy, convert and transmit data from either data slot via an output interface associated with the device.