Abstract: A key variable loader receives a set of Rijndael parameters that were verified using a simulation computer, wherein the set of Rijndael parameters provide an input for implementing at least one step of the Rijndael block cipher and when used with a secret key allow a conversion between plain text and cipher text using the Rijndael block cipher. The key variable loader further stores the set of Rijndael parameters and subsequently provides the set of Rijndael parameters to a device having a customizable Rijndael block cipher, like a subscriber unit or a key management facility.

Abstract: Systems and methods for vetting data include receiving a notification at a second processor that a first processor has written first output data to an output data buffer in an output device. A hardware-implemented buffer access flag controls a permission for the first processor to write data to the output data buffer. The second processor sets the hardware-implemented buffer access flag to a first setting that prevents the first processor from writing additional output data to the output data buffer while the first output data in the output data buffer is being inspected. The second processor has a read-write permission to the hardware-implemented buffer access flag. The first processor has a read-only permission to the hardware-implemented buffer access flag.

Abstract: A key variable loader receives a set of Rijndael parameters that were verified using a simulation computer, wherein the set of Rijndael parameters provide an input for implementing at least one step of the Rijndael block cipher and when used with a secret key allow a conversion between plain text and cipher text using the Rijndael block cipher. The key variable loader further stores the set of Rijndael parameters and subsequently provides the set of Rijndael parameters to a device having a customizable Rijndael block cipher, like a subscriber unit or a key management facility.

Abstract: Systems and methods for vetting data include receiving a notification at a second processor that a first processor has written first output data to an output data buffer in an output device. A hardware-implemented buffer access flag controls a permission for the first processor to write data to the output data buffer. The second processor sets the hardware-implemented buffer access flag to a first setting that prevents the first processor from writing additional output data to the output data buffer while the first output data in the output data buffer is being inspected. The second processor has a read-write permission to the hardware-implemented buffer access flag. The first processor has a read-only permission to the hardware-implemented buffer access flag.

Abstract: A milking unit support and detacher mechanism is provided for supporting a milking unit when the milking unit is attached to a cow for milking. The detacher mechanism includes a support arm movable between a first position wherein the arm extends downwardly and a second position wherein the arm extends outwardly, and the arm has a free end engageable with the hose member for supporting the milking unit. The arm is supported by a first support bracket disposed for rotation about a horizontal axis and a second bracket supported by the first bracket and being pivotal about a vertical axis. The support structure also includes a friction disc for yieldably resisting pivotal movement of the arm about the vertical axis. The support structure also includes a spring having one end supported by one of the brackets and the other end supporting the support arm.

Abstract: A milking unit detacher mechanism including a main support column and a horizontally extending retractable milking unit support assembly mounted on the main column. The retractable support assembly is comprised of a plurality of link members pivotally connected to each other with the end link member pivotally connected to the main support column by a pivot pin to facilitate movement of the support assembly in its retract direction from underneath the cow and in its extended direction to the milking position underneath the cow. A biasing means is provided to create a biasing force on the end link member tending to rotate it towards its extended position. The biasing means includes a first cam sleeve rotatably mounted on the pivot pin and fastened to the main support column and a second cam sleeve fixedly mounted on the pivot pin adjacent the first cam sleeve.

Abstract: A milking unit detacher mechanism including a main support column and a vertically movable milker support column slidably mounted on the main support column. The milker support column has a horizontally extending retractable milking unit support assembly mounted thereon adapted to support a milker unit on the end thereof when the milker unit is attached to a cow for milking. The milker unit support assembly can be retracted from its extended position underneath the cow to a retracted position adjacent the cow. A flexible retract member is fastened at one end to the milking unit support assembly and at the other end to a retract means for exerting a pulling force on the flexible retract member to thereby cause the milker unit support assembly to be retracted. The retract means includes a power cylinder having a movable piston rod.