Abstract: A power supply circuit (1) for powering a load device (10) with the requirements of a high power burst at a low duty cycle. The power circuitry includes; a power source (2), a voltage comparator (3) which makes sure that the power source has enough power for the system, a series boost regulator (5) which delivers a higher voltage to the capacitor (7), a switching buck/boost regulator (8) which receives the voltage from the capacitor and regulates the higher or lower voltage to the load device.

Abstract: A method of generating a pick packet for use by a web browser. The pick packet has secondary string buffer that assigns a unique token to each unique object or unique combination of objects and a primary string buffer that associates a token with each pixel in the source image. A description or legend is associated with the tokens in the secondary string buffer. When a pointer device hovers over a pixel in the source image, the browser looks in the primary buffer for the toke associated with that pixel, then retrieves the legend associated with that token, if any, from the secondary buffer.

Abstract: Method and device for processing raw GPS data to obtain extremely accurate corrected navigation data. The device is a stand-alone, puck-like GPS receiver/data logger that records raw data according to pre-programmed instructions. Ephemeris data and/or ionosphere prediction data that provide high accuracy for the time and location of data logging are uploaded into data processing software for processing the raw GPS data received via satellite signal. The raw GPS data may be post-processed on an external computing device or processed in realtime in the GPS receiver/data logger. The corrected navigation data thus obtained provides navigation data with submeter accuracy.

Abstract: A GPS data transceiver system capable of transceiving USB and/or RS-232 data between a host computer and a multi-mode GPS-receiver. The USB circuitry is incorporated into the multi-mode GPS-receiver and the RS-232 circuitry is incorporated into the multi-mode GPS-receiver or into an external power source, such as a battery pack. Depending on the data signal from the host computer, the data input/out device functions as a USB device or an RS-232 device.

Abstract: A device for coupling global positioning system (GPS) receivers to computer systems in a way that takes advantage of available power supplies. The device includes an adaptive power base that may be used to replace the standard battery-pack bases of many portable GPS receivers. The adaptive power base is coupled through an interface cabling system to an external power supply. The power supply may be associated with the computer means, such as a mouse or keyboard port, or it may be a completely separate source, such as an automobile's cigarette lighter outlet. The interface cabling system includes couplings for linking the data communications ports of the GPS receiver and the computer system together. Through the design of the present invention, the GPS receiver is more adaptive to available power sources and therefore may be used for longer periods of time and in a variety of locations. The design is simple in that it includes standard connectors.

Abstract: Computerized travel reservation information and planning system that generates "map ticket" output in various media, for guidance and transactions en route. Such print or electronic documents can include bar or alphanumeric codes for automated recognition and/or access. WHERE?, WHO/WHAT?, WHEN? and HOW? menus enable flexible user inquiries accessing selectable geographic, topical, temporal and transactional data records and relational processing. Sub-menus provide further capabilities: e.g. routing, topical searching; searches of events calendars, almanacs, appointment books, related itinerary scheduling; trip budgeting issues, plus travel arrangement availabilities or other goods/services offers. Online communications links access updated or supplemental information on places, times, topics and other provider goods/service offers.