Mark H Yim, 59109 Aberdeen Ter, Wayne, PA 19087

6367902, Apr 9, 2002

Nov 29, 1999

09/450484

Eric Saund - San Carlos CA
Mark H. Yim - Palo Alto CA
Kenneth P. Fishkin - Redwood City CA
Daniel L. Larner - San Jose CA
Thomas P. Moran - Palo Alto CA

Xerox Corporation - Stamford CT

B41J 29393

346139R, 347 2

The Pendulum Whiteboard Printer is an effector platform for a fully-automatic robotic device for marking or otherwise effecting whiteboards, pinboards, or other vertical surfaces The effector platform is designed to be suspended by two suspension wires whose lengths are adjusted by motorized spindles mounted above and on either side of the board surface. The position of the effector platform is adjusted by winding and unwinding the wires. Electrical power is supplied to the effector platform through the suspension wires or from an on-board battery. Control of a pen and/or other apparatus on the effector platform is achieved through modulation of the power voltage. The effector platform may be fitted with a variety of end effectors such as dry-erase markers, gripping elements, and squeegees.

6368002, Apr 9, 2002

Nov 29, 1999

09/450466

Eric Saund - San Carlos CA
Mark H. Yim - Palo Alto CA

Xerox Corporation - Stamford CT

B43K 2302

401131, 33 1 M, 346139 R

The Pendulum Whiteboard Printer is a fully-automatic robotic device for marking or otherwise effecting whiteboards, pinboards, or other vertical surfaces. The physical device consists of an effector platform suspended by two suspension wires whose lengths are adjusted by motorized spindles mounted above and on either side of the board surface. The position of the effector platform is adjusted by winding and unwinding the wires. Electrical power is supplied to the effector platform through the suspension wires or through an on-board battery. Control of a pen and/or other apparatus on the effector platform is achieved through modulation of the power voltage. A parking facility is provided as a resting place for the effector platform for such purposes as keeping pens from drying out.

6378634, Apr 30, 2002

Nov 28, 2000

09/722630

Mark H. Yim - Palo Alto CA

Xerox Corporation - Stamford CT

B62D 5700

180 71, 180 651, 280205, 446409, 446437, 446233, 446441

A tracking device includes an external member and an internal member rotatable relative to the external member. A motor is attached to the internal member and includes a rotor shaft attached to the external member. A pair of target sensors that sense a phenomenon such as a magnetic field, sound, light or RF radiation, provide input to a controller that controls rotation of the motor. Angular acceleration of the internal member will cause an equal and opposite angular acceleration of the external member and the tracking device will roll toward the target. The tracking device may hop by suddenly stopping the rotation of the internal member or by suddenly decreasing or increasing the acceleration of the motor or by inserting a linkage fixed to the external member into the rotation path of the internal member.

6413229, Jul 2, 2002

Feb 9, 2000

09/501015

James F. Kramer - Menlo Park CA
Mark H. Yim - Palo Alto CA
Marc R. Tremblay - Palo Alto CA
Daniel H. Gomez - Union City CA

Virtual Technologies, INC - San Jose CA

A61B 500

600595

A man-machine interface is disclosed which provides force information to sensing body parts. The interface is comprised of a force-generating device ( ) that produces a force which is transmitted to a force-applying device ( ) via force-transmitting means ( ). The force-applying device applies the generated force to a sensing body part. A force sensor associated with the force-applying device and located in the force applicator ( ) measures the actual force applied to the sensing body part, while angle sensors ( ) measure the angles of relevant joint body parts. A force-control unit ( ) uses the joint body part position information to determine a desired force value to be applied to the sensing body part. The force-control unit combines the joint body part position information with the force sensor information to calculate the force command which is sent to the force-generating device.

6422509, Jul 23, 2002

Nov 28, 2000

09/722627

Mark H. Yim - Palo Alto CA

Xerox Corporation - Stamford CT

F41G 700

244 321, 244 1723, 446 34, 446 36, 446 57

A tracking device includes a motor, top and bottom propellers of opposite sense attached to the stator and rotor of the motor for rotation in opposite directions. Target sensors are provided on the propellers and signals from the target sensors are supplied to a controller that controls the rotation of the motor and the propellers. The tracking device also includes a power supply for the motor and the controller.

6424333, Jul 23, 2002

Apr 18, 2001

09/838052

Mark R. Tremblay - Mountain View CA
Mark H. Yim - Palo Alto CA

Immersion Corporation - San Jose CA

G09G 500

345156, 345702, 414 5

A man-machine interface which provides tactile feedback to various sensing body parts is disclosed. The device employs one or more vibrotactile units, where each unit comprises a mass and a mass-moving actuator. As the mass is accelerated by the mass-moving actuator, the entire vibrotactile unit vibrates. Thus, the vibrotactile unit transmits a vibratory stimulus to the sensing body part to which it is affixed. The vibrotactile unit may be used in conjunction with a spatial placement sensing device which measures the spatial placement of a measured body part. A computing device uses the spatial placement of the measured body part to determine the desired vibratory stimulus to be provided by the vibrotactile unit. In this manner, the computing device may control the level of vibratory feedback perceived by the corresponding sensing body part in response to the motion of the measured body part. The sensing body part and the measured body part may be separate or the same body part.

6454624, Sep 24, 2002

Aug 24, 2001

09/938924

David G. Duff - Woodside CA
Mark H. Yim - Palo Alto CA
Samuel B. Homans - Oakland CA
Kimon D. Roufas - Mountain View CA
John W. Suh - Palo Alto CA

Xerox Corporation - Stamford CT

A63H 3304

446 91, 414915, 446 94, 446 93, 446484

An assemblage of robotic modules includes a plurality of robotic modules, with each robotic module having memory capability, an actuator, a joint position sensor, and communication means. The assemblage of robotic modules also includes a distributed control unit, which is defined at least in part by a plurality of individual central processing units, with each robotic joint module having at least one central processing unit.

6575802, Jun 10, 2003

Aug 24, 2001

09/939186

Mark H. Yim - Palo Alto CA
Samuel B. Homans - Oakland CA
David G. Duff - Woodside CA
Kimon D. Roufas - Mountain View CA
John W. Suh - Palo Alto CA

Xerox Corporation - Stamford CT

A63H 3304

446 91, 446484, 901 1

An assemblage of robotic modules for a toy construction system includes a plurality of robotic modules, each of which contains memory capability, an actuator, communication means, and a central processor unit. The assemblage also includes a distributed control unit, which is defined at least in part by a plurality of individual central processing units, with each individual robotic module having at least one central processing unit.