Sun Mountain Sports, Inc.

Diablo Research Corporation

Poqet Computer Corp.

Lance T Klinger

Eric W Reimers

Derek Bray

John P Fairbanks

Timothy P Murphy

Andy C Yuan

A push-pull Class E amplifier is used to provide an efficient transfer of power to the induction coil in an electrodeless discharge lamp and to reduce the amount of radio frequency interference emitted by the lamp into the surrounding environment. A bifilar or other type of multifilar induction coil, preferably center-tapped, is used to further reduce the radio frequency interference problem.

Electrodeless discharge lamp containing push-pull class E amplifier and

A putter alignment system (10) is provided for use in aiding in practicing golf putting. The system (10) includes a putter component (12) mounted on a golf putter (12) and a remote target component (14) situated along the desired relative alignment axis (18) from the putter (20). Electronic components are utilized to determine relative alignment of the putter (20) to the target by analyzing an reflected slot beam (16). The preferred embodiment includes an emitter (68) on the remote target component (14) and a cylindrical subsection reflector (50) of one of several acceptable configurations on the putter component (12) to created and delimit the beam (16). The reflector (50) is mounted on the putter (20) so as to be perpendicular to the putter axis (49) such that on perfect alignment a the slot beam (16) will coincide with the alignment axis (18). The horizontal position of the slot beam (16) is detected by an array of photosensors (69 ) while signal output is provided by signal lights (75) corresponding to the relative alignment. Electronic signal analysis components in the receiver/sensor assembly (32) provide improved resolution and performance by utilizing synchronous demodulation and multiple operational loops for channel signal analysis. Alternate signal outputs allow analysis of a putting stroke as well as of static prealignment.

Putter alignment system

A structure and method for controlling a liquid crystal display takes advantage of the sharp reflectance change over a small voltage change for new liquid crystal display materials, applying ON and OFF pixel voltages very close to the transition voltage of the liquid crystal material and regulating the applied voltage to remain reliably near and on the desired side of this transition voltage. Also, a net zero DC voltage across pixels of the crystal is maintained using a switching mode close to half the frequency of prior art modes. Driving voltages are provided by a switching regulator rather than the prior art voltage divider, resulting in a significant reduction in operating power. The preferred switching regulator generates only three additional voltages for driving rows and columns of the display, in contrast to the five generated voltages of the prior art voltage divider. An on/off voltage regulator alternately provides or does not provide power to a primary coil, thereby controlling voltage across capacitors associated with secondary coils. This gives accurate voltage control over a wide range of display loads. This voltage regulator is controlled preferably by the low voltage applied across pixels during the time when the pixels are not in the selected row, that is, during the time when the logic state of a pixel is not provided to the pixel.

Power system and scan method for liquid crystal display

Growing community of inventors

Mountain View, CA, United States of America

Lance T Klinger