Abstract: Disclosed is a compact power supply unit that prevents an electronic device from being shut down even when due to an in-rush current phenomenon the electronic device requires a supply of power that is extraordinarily greater than that which is needed for normal operation. A CV area where constant voltage feedback control is performed on an output terminal voltage until it reaches a level V.sub.1 is continued until an output current value is I.sub.1. Then, constant current feedback control is performed with the output current I.sub.1 until the output terminal voltage falls to V.sub.2 (<V.sub.1). Further, constant current feedback control is performed with the output current I.sub.2 (<I.sub.1) in the area where the output terminal voltage is lower than V.sub.2 (more specifically, in a battery charging area).

Abstract: Disclosed is a video game system which provides a user with text based Internet access. The video game system includes first and second connector ports for removably and electrically connecting the game console to first and second cartridges respectively. The first cartridge has a dialer/terminal application program stored therein while the second cartridge includes a modem and a telephone port for transferring data between the Internet and the video game system via a telephone line. A processor is electrically coupled to a system memory, the first and second connector ports and an input/output port. The processor is operative to transfer the application program from the first cartridge to the system memory and execute the application program out of system memory to connect to the Internet and transfer text data between the Internet and the video game system wherein the text data is displayed on a video display device as it is received from the Internet and as it is input from a control device.

Abstract: Disclosed is a personal computer system that includes a media console coupled to a system unit with a multi-conductor cable. The media console contains a direct access storage device (e.g., floppy disk drive) having an opening for receiving a removable storage medium. The system unit is separate from the media console and includes a microprocessor coupled to a first bus, a non-volatile storage device coupled to the first bus and a power supply for supplying power to the the system. The multi-conductor cable has one end coupled to the media console and another end coupled to the system unit for electrically connecting devices in the media console to devices in the system unit.

Abstract: Disclosed is a media console of a personal computer system that includes a drive housing that can be moved within a base member between an open position and a closed position. A direct access storage device (e.g., floppy disk drive) is disposed within the drive housing and has an opening for receiving a removable storage medium. The open position is characterized in that the opening in the direct access storage device is accessible to a user while the closed position is characterized in that the opening in the direct access storage device is not accessible to the user.The drive housing pivots on pins which are disposed at opposite ends of a back portion of the drive housing. The pins fit within grooves which are located at each end of the base member. A spring coupled to the base member and the drive housing biases the drive housing toward the open position. A latch for latching the drive housing in the closed position is coupled to the base member and the drive housing.

Abstract: Described is a personal computer system which includes a central processing unit (CPU) and power management circuitry (PMC) in circuit communication with the CPU. A power supply is in circuit communication with the CPU and the PMC and includes circuitry for selectively providing system power to the computer system and auxiliary power to the PMC (1) from an external source or (2) from an internal source. When the system is in a normal operating state and the external source stops providing power at a predetermined level (e.g., brownout or blackout) to the power supply, the power supply is operative to generate a control signal to the PMC and switch to its internal power source. The power management circuitry is characterized in that while in the normal operating state, responsive to the power supply activating the control signal, the PMC causes the computer system to change to the suspend state wherein the entire state of the system is safely saved to a non-volatile storage device.

Abstract: Described is a personal computer system which includes a central processing unit (CPU) and power management circuitry (PMC) in circuit communication with the CPU. A switch is coupled to the PMC. A power supply is coupled to the CPU, PMC and the switch and includes circuitry for selectively providing system power to the computer system and auxiliary power to the PMC (1) from an external source or (2) from an internal source. When the system is in a normal operating state and the external source stops providing power at a predetermined level (e.g., blackout or brownout) to the power supply, the power supply is operative to change to its internal power and generate a control signal to the switch. The control signal causes the switch to activate a closure event and generate another control signal.

Abstract: This disclosure relates to a computer system having a peripheral component interconnect (PCI) and expansion bus riser card having at least one expansion bus slot and at least one PCI slot, the latter of which meets a PCI bus stub length requirement. The PCI slot is connected to the PCI bus by a plurality of PCI stub lines. Each of the plurality of PCI lines does not exceed a predetermined length. The expansion bus is divided into a first section having a first plurality of lines and a second section having a second plurality of lines. The plurality of PCI lines are disposed between the first and second plurality of lines of the expansion bus such that all of the plurality of PCI lines from the riser card to the PCI bus do not exceed the predetermined length.

Abstract: Disclosed is a method which includes displaying a cursor at a predetermined position in a numeric string and editing the numeric string by either one of; (1) inserting a numeral or a symbol at the cursor position, (2) replacing a numeral or symbol at the cursor position or (3) deleting a numeral at the cursor position or deleting a numeral preceding the cursor position. A digit separator is then inserted into the edited numeric string and the resultant numeric string is displayed on a display device. The cursor is then moved to a new position where another editing step is to be performed on a numeral or symbol that is one position to the right of the numeral or symbol that was inserted, replaced or deleted. Another method disclosed includes displaying a cursor for a numeric string alteration operation at a predetermined cursor position in a numeric string that consists of an optional prefix and a numeric portion wherein a digit separator is counted as one character.

Abstract: Disclosed is a media console which includes a base member and a drive housing that can be moved within the base member between an open position and a closed position. A spring is connected to a bottom of the base member and to the drive housing for biasing the drive housing in the open position. A pair of gear tracks are integrally formed in opposite sides of the base member for cooperating with a pair of geared dampers attached to opposite ends of the drive housing. The drive housing includes a direct access storage device disposed at a front end thereof and the direct access storage device has an opening for receiving a removable storage medium. The spring, gear tracks and geared dampers cooperate with each other (1) to allow the drive housing to move smoothly from the closed position to the open position wherein a user may access the opening, and (2) to allow the drive housing to move smoothly from the open position to the closed position.

Abstract: Disclosed is an aseismic support structure having one end secured to a fixed floor and another end connected to a subject structure placed on a floating floor. The aseismic support structure includes a toggle bar, an attachment section and a mounting section. The toggle bar has a universal joint at each end and is adjustable in its length to have a predetermined length. The universal joints are rotatable around axes in the horizontal and vertical directions, respectively. The attachment section is connected to the toggle bar through one of the universal joints, and has at another end another universal joint comprising a vertical rotation section. The mounting section is connected to the attachment section through another universal joint, and secures the equipment.

Abstract: A digital data handling system handling display signal streams has a video processor which is capable of high performance due to vector processing and special addressing modes. The video processor is a single VLSI device having a plurality of processors, each of which has associated instruction and data caches, which are joined together by a wide data bus formed on the same substrate as the processors.

Abstract: A digital signal processing system includes a first and second memory coupled to first and second register banks respectively. The system further includes first and second multipliers coupled to the first and second register banks for producing first and second product outputs respectively. The system also includes an arithmetic logic unit having first, second and third inputs and an output. The first input is coupled to the first product output and the second and third inputs are selectively coupled to either of the second product output and the first and second register means. The arithmetic logic unit output is coupled to the first and second register banks for accumulating the sample values in the first and second register banks. The system further includes Instruction control for storing a plurality of instruction op codes and controlling the system to compute the sample values by performing simplex operations during each cycle of a plurality of operating cycles of a digital signal processing procedure.

Abstract: Disclosed is a power supply which includes a transformer having a primary winding and a secondary winding. A rectifier circuit rectifies an input AC mains signal to produce a DC rectified mains signal. A power factor correction circuit transfers electrical power from the rectifier circuit to the primary winding. A switch is provided for transferring electrical power from the primary winding to the secondary winding. The power factor correction circuit includes a first diode having an anode connected to the rectifier circuit and a cathode connected to one end of the primary winding and a second diode having an anode connected to the rectifier circuit and a cathode connected to said one end of the primary winding via a snubber network. The correction circuit may also include a third diode having an anode connected to the rectifier circuit and a cathode connected to a second end of the primary winding via an inductor.

Abstract: A computer system having a peripheral bus and a digital signal processor (DSP) local bus interfacing to the peripheral bus via an extended bus interface circuit (EBIC). The DSP local bus is configured such that devices, which are typically two or more DSPs, electrically connected to the DSP local bus may transfer data to other devices connected to the DSP local bus regardless of data transfer activity of the peripheral bus. Moreover, as seen from the peripheral bus, the devices connected to the DSP local bus have the same arbitration level. However, as seen from the DSP local bus, each device connected to the DSP local bus has a unique arbitration level determined by the priority of the tasks executing on the respective devices, as determined by a DSP operating system.