Abstract: A clamp includes first and second clamp members having first and second inner surfaces with first and second clamping surfaces and first and second hinge portions joined for pivoting movement about a first axis across a range of clamping positions. A fastener extends through first and second access bores of the first and second clamp members for threaded engagement with a nut. The first and second access bores are elongated to permit pivoting movement of the shaft portion with respect to each of the first and second clamp members.

Abstract: A clamp includes first and second clamp members having first and second inner surfaces with first and second clamping surfaces and first and second hinge portions joined for pivoting movement about a first axis across a range of clamping positions. A fastener extends through first and second access bores of the first and second clamp members for threaded engagement with a nut. The first and second access bores are elongated to permit pivoting movement of the shaft portion with respect to each of the first and second clamp members.

Abstract: A security system may include a plurality of electronic devices, each having a unique identification (ID) associated therewith and configured to generate a temporary security code based upon the unique ID. The system may further include at least one mobile wireless communications device including a first Near-Field Communication (NFC) circuit, and a mobile controller configured to receive the temporary security code from a given electronic device from among the plurality of electronic devices. The system may also include an access control device associated with a personnel access position and including a second NFC sensor and a security controller. The security controller may be configured to receive the temporary security code from the first NFC sensor via NFC communications, selectively grant personnel access based upon the received temporary security code, and determine the unique ID associated with the given electronic device.

Abstract: In an embodiment, a receiver includes an antenna configured to receive a communication frame. The communication frame may include an acquisition code symbol sequence, which in turn may include a plurality of acquisition code symbols. In an embodiment, an acquisition code symbol includes a subcode sequence having a plurality of subcodes. A receiver also may include a correlation calculator coupled to the antenna. The correlation calculator may be configured to determine a correlation between the subcodes of the received communication frame and a stored version of the subcodes. The correlation may be used in determining a timing offset for further processing of the communication frame.

Abstract: Embodiments include methods and apparatus for verifying the detection of a correlation peak, which may represent an acquisition of a received acquisition code symbol sequence. The method includes determining a series of coherently-aligned peaks from a series of correlation peaks. Determining the plurality of coherently-aligned peaks includes correcting a frequency offset and a phase offset for each of the plurality of correlation peaks. A coherent match filter process is performed on the plurality of coherently-aligned peaks. A detection of the correlation peak may be verified when the match filter result exceeds a threshold.

Abstract: Embodiments include methods and apparatus for verifying the detection of a correlation peak, which may represent an acquisition of a received acquisition code symbol sequence. The method includes determining a series of coherently-aligned peaks from a series of correlation peaks. Determining the plurality of coherently-aligned peaks includes correcting a frequency offset and a phase offset for each of the plurality of correlation peaks. A coherent match filter process is performed on the plurality of coherently-aligned peaks. A detection of the correlation peak may be verified when the match filter result exceeds a threshold.

Abstract: In an embodiment, a receiver includes an antenna configured to receive a communication frame. The communication frame may include an acquisition code symbol sequence, which in turn may include a plurality of acquisition code symbols. In an embodiment, an acquisition code symbol includes a subcode sequence having a plurality of subcodes. A receiver also may include a correlation calculator coupled to the antenna. The correlation calculator may be configured to determine a correlation between the subcodes of the received communication frame and a stored version of the subcodes. The correlation may be used in determining a timing offset for further processing of the communication frame.

Abstract: A self-contained properly balanced for loaded towing mobile masonry unit. The unit has a towable trailer and mounted on the trailer in position to properly balance the load for loaded towing are a product hopper, a water tank, and an operatively associated cement mixer.