Compaq Computer Corporation, Inc.

Cypress Semiconductor Corporation

Compaq

Mark D Moore

Paul F Beard

Randall L Hess

Norman P Brown

Drew S Johnson

David M Burckhartt

Bradley Alan Silen

Drew Marshall Harrington

Bradley B Hartfield

Keith Ermel

Lorenzo Cotton

Geoffrey A Zawolkow

A method for radiofrequency (RF) transmission of digital information includes generating an RF signal using a voltage-controlled oscillator (VCO), stabilizing the RF signal from the VCO by providing an error signal from a phase-locked loop (PLL) to an input of the VCO, and combining the digital information with the error signal of the PLL input to the VCO, thereby causing variations in frequency of the RF signal from the VCO that represent the digital information. Apparatus for RF transmission of digital information includes a VCO, the VCO arranged to generate an RF signal, a PLL, the frequency input of the PLL coupled to the RF signal output of the VCO, an encoder, the encoder arranged to convert the digital information into a form where it has a data rate faster than a response time of the PLL, and a coupler, the coupler coupling both the error signal output of the PLL and the encoded digital information to an input of the VCO.

Digital radiofrequency transceiver

A computer system includes a display control apparatus for preventing the display of certain characters during the bootup sequence prior to transfer of control to an operating system. The control may be instituted without significantly augmenting the basic input/output system memory requirements using a terminate and stay resident driver to cause certain interrupts which would otherwise result in screen displays to cache the screen display characters. The screen display characters maybe displayed upon user command if elected. The computer system is sensitive to a variety of conditions which require restoration of the screen display including situations which require user key input and the failure of the operating system to initiate within a certain period of time.

Method and apparatus for display control bootup

A system for allowing a peripheral device to be inserted directly into a port of a computer system while the computer system is powered on. The insertion of a peripheral device into the computer system port is automatically detected, and a configuration operation is automatically performed when insertion of the peripheral device is detected. The system also allows a plurality of peripheral devices to be connected to a single port of a computer system by automatically determining the number of peripheral devices and assigning a unique address to each of the peripheral devices. The peripheral device may have a host port for communicating with the computer system, a slave port for connecting to a slave device, and a device manager which identifies if a slave device is connected.

Apparatus and method for coupling multiple peripheral devices to a

A method, apparatus and computer system for detecting the insertion of a medium in a medium drive, including applying energy to a drive motor of the medium drive; changing the state of a medium change signal, in response to the energy, to reflect the presence of a medium in the medium drive; and relaxing the energy before the drive motor turns.

Detecting diskette insertion

A computer application stored on a storage medium (e.g., a portable storage medium such as a compact disk) is automatically launched. Initialization information expressed in accordance with a predefined syntax is stored on the storage medium. Also stored in the computer is 'launching' information sufficient, together with the initialization information, to enable the computer to launch the application. The application is automatically launched, without user intervention, by reading the initialization information and using it in connection with the launching information stored in the computer.

Launching computer applications

A method for displaying information about computer files to a user on a display in an environment simulating three dimensional space includes displaying a category of files as a container having a size related to its distance from a predefined portion of the display.

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Palo Alto, CA, United States of America

Mark D Moore