Abstract: A total body exercise machine including a fixed seat and longitudinal frame members on which travel a footrest slide carriage and a handle slide carriage. A tensile element coordinates movement of the slide carriages in opposite directions at a constant speed ratio. In the preferred embodiment resistance to slide carriage movement is provided by one or more friction brakes coupled to a slide carriage by a pivot frame oriented at an acute angle to the longitudinal frame member on which the carriage travels. The brake thereby provides more resistance in one direction of travel than the other, and the magnitude of resistance is controlled by a small static force bearing on the pivot frame. In one embodiment a logic controller electronically controls this small static force by means of a force feedback loop to simulate a kinesthetic flywheel effect and to reduce shock loading.

Abstract: Method and apparatus for simultaneously scrolling and zooming graphic data in a display device in response to pointing device action by user. The system alternates between zooming in and zooming out at preset rates in response to successive user actuations of a unique button set on the pointing device. While the button set remains actuated the pointing device acts to pan the viewport.

Abstract: A total body exercise machine including a fixed seat and longitudinal frame members on which travel a footrest slide carriage and a handle slide carriage. A tensile element coordinates movement of the slide carriages in opposite directions at a constant speed ratio. In the preferred embodiment resistance to slide carriage movement is provided by one or more friction brakes coupled to a slide carriage by a pivot frame oriented at an acute angle to the longitudinal frame member on which the carriage travels. The brake thereby provides more resistance in one direction of travel the other, and the magnitude of resistance is controlled by a small static force bearing on the pivot frame. In one embodiment a logic controller electronically controls this small static force by means of a force feedback loop to simulate a kinesthetic flywheel effect and to reduce shock loading.

Abstract: A compact portable rowing machine features a hollow container that holds a supply of water. Pulling on a drive cord during a pulling segment of a stroke rotates a paddle or like mechanism located within the container to rotate the water to produce a momentum effect. Turbulence in the water provides fluid resistance to the rotation of the paddle. A drive cord is wrapped on a double spool mounted on a clutch to drive the paddle in one direction. The wrapping is such that changing the length of the drive cord between the spool and a handle gripped by a user changes the radius at which tangential force is applied by the cord to the spool to vary the resistance of the machine. In one form the drive cord also forms a portion of the recoil mechanism as a continuous closed loop strap secured at its ends to different spools of a double spool. A continuous portion of the drive cord located between the handle and one spool is to secured to the handle.

Abstract: A compact portable rowing machine features a hollow container that holds a supply of water. Pulling on a drive cord during a pulling segment of a stroke rotates a paddle or like mechanism located within the container to rotate the water to produce a monentum effect. Turbulence in the water provides fluid resistance to the rotation of the paddle. A drive cord is wrapped on a double spool mounted on a clutch to drive the paddle in one direction. The wrapping is such that changing the length of the drive cord between the spool and a handle gripped by a user changes the radius at which tangential force is applied by the cord to the spool to vary the resistance of the machine. In one form the drive cord also forms a portion of the recoil mechanism as a continuous closed loop strap secured at its ends to different spools of a double spool. A continuous portion of the drive cord located between the handle and one spool is to secured to the handle.