Abstract: A method and system includes a first radio establishing a group of radios that has a first plurality of radios and the first radio and a second radio not within the group. The first radio generates a first communication signal. The first communication signal includes a first radio identifier and first position data. The first radio receives the first communication signal, determines second position data of the first radio and compares the first position data and the second position data to obtain a distance. The first radio or the second radio broadcasts the first radio identifier and the first position data to the group when the distance is within a predetermined distance in response to comparing.

Abstract: A method and system includes a first radio establishing a group of radios that has a first plurality of radios and the first radio and a second radio not within the group. The first radio generates a first communication signal. The first communication signal includes a first radio identifier and first position data. The first radio receives the first communication signal, determines second position data of the first radio and compares the first position data and the second position data to obtain a distance. The first radio or the second radio broadcasts the first radio identifier and the first position data to the group when the distance is within a predetermined distance in response to comparing.

Abstract: A computer has a central processing unit, memory and an I/O subsystem. The I/O subsystem is linked to a mass storage device having a first partition, and a second partition containing a hibernation data storage area. The mass storage device further includes a partition table which indicates that the first partition is active to boot the computer and that the second partition is not active. The computer also has logic using the I/O subsystem to select which partition is to be used to boot the computer. The memory contains a program, in response to the logic to select the partition, which is capable of reading the partition table of the mass storage device and modifying it so that the selected partition is presented as active to the CPU for booting the computer.

Abstract: A clock reference frequency is digitally derived from a base signal, then digitally modulated by ramping the clock reference frequency up and down about a desired frequency. The modulation occurs in periodic fashion at a prescribed modulation frequency. Such modulation spreads the electromagnetic energy of the system signals over a band that is a portion of the desired clock frequency. As a result, energy in harmonics of the respective system signals also are spread. When the energy spreading of any system signal or harmonic of such signal occurs over a bandwidth greater than the 120 kHz bandwidth of conventional communication receivers, adverse EMI emissions are reduced.

Abstract: A clock reference frequency is digitally derived from a base signal, then digitally modulated by ramping the clock reference frequency up and down about a desired frequency. The modulation occurs in periodic fashion at a prescribed modulation frequency. Such modulation spreads the electromagnetic energy of the system signals over a band that is a portion of the desired clock frequency. As a result, energy in harmonics of the respective system signals also are spread. When the energy spreading of any system signal or harmonic of such signal occurs over a bandwidth greater than the 120 kHz bandwidth of conventional communication receivers, adverse EMI emissions are reduced.

Abstract: The position encoder system requires no keyboard surface area and includes a retractable and extendable handle that is stored inside the computer when not in use. The handle is extended for use near the computer keyboard. The movement of the handle is sensed by a high resolution sensing system that consumes relatively little power.

Abstract: Information representing the state of switches carried on a pointing device handle is carried to an associated computer via a capacitive coupling technique.

Abstract: Apparatus for detecting electrostatic discharge events that may affect operation of a calculator and for suspending the operation of an internal calculator chip before the discharge can corrupt the chip's operation. The apparatus includes an edge detector that detects the discharge event and generates a signal to timer circuitry. The timer circuitry in response generates a signal for a predetermined time to WAIT circuitry which suspends operation of the calculator chip before its calculations can be corrupted. The predetermined time is long enough for the electrostatic discharge to dissipate sufficiently so that it can no longer corrupt the calculations. After the predetermined time passes, the calculator chip resumes its operation to complete its calculations.

Abstract: The present invention describes a method and apparatus for interconnecting keyboard lines and memory lines to the same pins of a microprocessor or calculator chip. Resistors are placed in series with each keyboard line before interconnection to the memory lines and microprocessor pins to prevent disruption or degradation of the memory signal in the event a key on keyboard is depressed during a memory operation cycle. Means are provided to prevent memory operations during keyboard scan routines and means are provided to prevent keyboard scan routines from operating during memory operation cycles.