Abstract: A receiver circuit includes an interleaved ADC, a first delay circuit, a second delay circuit, a first processing channel, a second processing channel, and an interleaving ADC timing error detector circuit. The interleaved ADC includes a first ADC and a second ADC in parallel. The first delay circuit delays a first clock signal provided to the first ADC. The second delay circuit delays a second clock signal provided to the second ADC. The first processing channel processes data samples provided by the first ADC, and includes a first slicer. The second processing channel processes data samples provided by the second ADC, and includes a second slicer. The interleaving ADC timing error detector circuit controls delay of the first delay circuit and the second delay circuit based on an output signal of the first slicer, and an output signal or an input signal of the second slicer.
Abstract: An exemplary locking cartridge includes a generally cylindrical housing, first and second plates, and a sliding member. The plates are rotatable with respect to the housing, and at least one of the plates is movable in the axial direction of the housing. The housing and the movable plate include cam surfaces that interact to cause the movable plate to move toward the other plate when the movable plate is rotated. The sliding member is slidingly coupled to one of the plates and operable in a blocked state in which the sliding member resists axial motion of the movable plate, and an unblocked state in which the sliding member does not resist axial motion of the movable plate.
Abstract: In at least one embodiment, a vehicle apparatus for changing status for a key is provided. The vehicle apparatus comprises a controller. The controller is configured to receive a key identification signal from a first key and to transmit a key status signal indicative of whether the first key is one of a master key and a non-master key based on the key identification signal. The controller is further configured to receive a change request signal corresponding to a request to change status for an additional key from a primary key to a secondary key if the first key is master key.
Type:
Grant
Filed:
November 24, 2009
Date of Patent:
November 6, 2012
Assignee:
Ford Global Technologies, LLC
Inventors:
Thomas Lee Miller, Brian Bennie, Martin J. Sultana
Abstract: A method of assigning change keys and master keys in a master key system using a 6 pin cylinder with 5 bittings based on an 8×8 checkerboard and pieces ¼, 1, 4, 16 squares in size representing 16, 64, 256 and 1024 change keys with a master key bitting combination available for each piece which would operate all the change keys assigned to that piece. A first alternate embodiment uses an array of (b−1)(p−3) elements (b being the number of bittings and p being the number pins used for master keying), each array element representing (b−1)3 change keys. The array being repeatedly divided into subarrays of (b−1)(p−x) elements, where x=4, 5, 6, . . . , p−1. Instead of assigning the change keys to a checkerboard piece, the change keys are assigned to a subarray representing at least the number of change keys.