Abstract: A slope sensitive pitch adjustor for a bicycle seat includes a rotatable seat support, a gravity sensor mounted thereto, a means for rotating the rotatable seat support, and an automated controller configured to drive the rotating means in response to an acceleration signal received from the gravity sensor. The automated controller stores data representing an initial condition of a pitch angle of the rotatable seat support with respect to horizontal and executes a control algorithm to maintain the initial condition when the bicycle is ridden over changing gradients.

Abstract: A slope sensitive pitch adjustor for a bicycle seat includes a rotatable seat support, a gravity sensor mounted thereto, a means for rotating the rotatable seat support, and an automated controller configured to drive the rotating means in response to an acceleration signal received from the gravity sensor. The automated controller stores data representing an initial condition of a pitch angle of the rotatable seat support with respect to horizontal and executes a control algorithm to maintain the initial condition when the bicycle is ridden over changing gradients.

Abstract: A slope sensitive pitch adjustor for a bicycle seat includes a rotatable seat support, a gravity sensor mounted thereto, a means for rotating the rotatable seat support, and an automated controller configured to drive the rotating means in response to an acceleration signal received from the gravity sensor. The automated controller stores data representing an initial condition of a pitch angle of the rotatable seat support with respect to horizontal and executes a control algorithm to maintain the initial condition when the bicycle is ridden over changing gradients.

Abstract: Device authentication is implemented at the application layer of a computer communication model to add a factor to user authentication without requiring any action by the user. User space applications, such as web browsers, e-mail readers, and such, can remain completely unaffected. Instead, the additional authentication factor is provided at the application layer, typically in an operating system, where protocols such as HTTP(s), FTP(s), POP, SMTP, SNMP and DNS are implemented. Authentication is performed by a challenge/response transaction and the client device's digital fingerprint is compared to a whitelist of digital fingerprints of authorized client devices.

Abstract: Device authentication is implemented at the application layer of a computer communication model to add a factor to user authentication without requiring any action by the user. User space applications, such as web browsers, e-mail readers, and such, can remain completely unaffected. Instead, the additional authentication factor is provided at the application layer, typically in an operating system, where protocols such as HTTP(s), FTP(s), POP, SMTP, SNMP and DNS are implemented. Authentication is performed by a challenge/response transaction and the client device's digital fingerprint is compared to a whitelist of digital fingerprints of authorized client devices.

Abstract: A message board comprising a bulletin board fixedly mounted on a backing of heavy cardboard or other substrate, and an optional dry-erase laminate fixedly mounted onto the bulletin board. A frame is fixedly secured to the edges of the bulletin board and backing. The frame is provided with a front channel and a rear channel, each adapted to receive and firmly retain a portion of a generally "C"-shaped grip. The grip may be integrally formed with various accessories desired to be attached to the frame of the message board.