公开(公告)号：JP2000305678A

公开(公告)日：2000-11-02

申请号：JP2000091922

申请日：2000-03-29

Applicant: SUN MICROSYSTEMS INC

Inventor： LACH JORGE E

IPC: G06F13/14 ,  G06F3/00 ,  G06F13/36 ,  G06F13/40 ,  G06K17/00

Abstract: PROBLEM TO BE SOLVED: To enable adding or removing a component without turning off a power source by selectively connecting at least one slot to a first bus in response to a control signal during the operation of an electronic component and selectively connecting at least one slot to a second bus during the test of the electronic component. SOLUTION: A hot plug device 300 has a hot plug logic module 302 provided with both a hot plug controller 303 and an inter-PCI bridge (P2P) 304. Further, the hot plug device 300 is provided with three-way isolation switches 312 and 314 for individually connecting (and disconnecting) individual slots 206 and 207 to (and from) a primary PCI bus 202 and a secondary local PCI bus 306. The three-way isolation switches 312 and 314 are controlled by a control signal sent onto control lines 316 and 318 by the hot plug controller 303. Therefore, a newly inserted adapter card can be tested before connecting it to the primary PCI bus 202.

公开(公告)号：JP2000285083A

公开(公告)日：2000-10-13

申请号：JP2000024118

申请日：2000-02-01

Applicant: SUN MICROSYSTEMS INC

Inventor： WEEK JEREMY

IPC: G06F15/16 ,  G06F9/06 ,  G06F9/44 ,  G06F9/46 ,  G06F9/50

Abstract: PROBLEM TO BE SOLVED: To easily convert an existing control flow program into a data flow program by selecting a block to execute the designated corresponding part of the control flow program in accordance with the stored dependency. SOLUTION: A chart is displayed for defining a memory area (610), and the memory area is divided into blocks by means of a tool (620). If an area to be processed includes a divided block (630), the block is selected (640) and another block that affects the final state of the selected block is identified (650). Then the program code of every block is designated (660) and the blocks are connected to each other on an image to establish the dependency among the blocks (670). The blocks where the mutual dependency is established are logically arranged in a queue so that they are processed in a multiprocessor computer system (680).

公开(公告)号：JP2000215070A

公开(公告)日：2000-08-04

申请号：JP2000013313

申请日：2000-01-21

Applicant: SUN MICROSYSTEMS INC

Inventor： ASUUINI S KUMAR ,  STEIN DANIEL A

IPC: G06F9/46 ,  G06F9/48 ,  G06F9/52

Abstract: PROBLEM TO BE SOLVED: To obtain a robust and recoverable lock which never causes other processes to hang up even if a process to hold the lock fails. SOLUTION: This lock includes a process wherein one process tries to obtain a lock for the purpose of mutual exclusion, a process wherein if the trial of obtaining the lock is returned together with an error indicating that a precedent process holding the lock has lost the right of the lock, it is tried to make consistent the program state protected by the lock, a process when the trial of making the program state consistent is successful, the lock is initialized again and released, and a process wherein if the trial of making the program state consistent is not successful, the lock is given an unrecoverable mark and then a following process trying to obtain the lock receives an error indicating that the lock is unrecoverable.

公开(公告)号：JP2000207580A

公开(公告)日：2000-07-28

申请号：JP2000002953

申请日：2000-01-11

Applicant: SUN MICROSYSTEMS INC

Inventor： SOWIZRAL HENRY A ,  ZIKAN KAREL

IPC: G06T15/00 ,  G06T3/60 ,  G06T19/00 ,  G06T17/00

Abstract: PROBLEM TO BE SOLVED: To realize a system and a method for rendering graphic rotation more easily. SOLUTION: This processor works on a matrix M through the use of a matrix operator having the quality of coincidence with rotation and of attraction to the rotation. The matrix operator is adapted plural times in order to attain larger error attenuation. The processor or a graphic accelerator calculates image graphic rendering through the use of a result matrix L which is obtained by the adaptation of the matrix operator. A first approximate rotation matrix for expressing an orientation before a graphic object is multiplied by the second approximate rotation matrix expressing the desired rotation to be added to the graphic object to obtain the matrix M expressing the updated orientation of the graphic object.

公开(公告)号：JP2000207364A

公开(公告)日：2000-07-28

申请号：JP29671298

申请日：1998-10-19

Applicant: SUN MICROSYSTEMS INC

Inventor： SUTHERLAND IVAN E ,  COATES WILLIAM S ,  MOLNAR CHARLES ,  ROBERT F SPROLL

IPC: G06F15/16 ,  G06F9/38 ,  G06F15/80

Abstract: PROBLEM TO BE SOLVED: To easily design a complicated asynchronous pipeline system by using information flowing in a 1st pipeline so as to control the arrangement of information flowing in a 2nd pipeline. SOLUTION: A pipeline accumulator has its adding function divided into three parts. An ADD place 12 includes logic for previous addition and forms a partial sum to be supplied to a Carry1 place 14. The place 14 includes a logic circuit for a previous conveyance step. A partially completed value from the place 14 is passed to a Carry2 place 16 and a seed place 19 through a path 15. Those places complete addition and the place 16 passes the sum to a place 18 through a path 17. The place 19 returns the sum along a bypass route 34 and puts it in the place 12. The place 12 adds input data from an input place 10 to the cumulative sum from the path 34.

公开(公告)号：JP2000207088A

公开(公告)日：2000-07-28

申请号：JP34026599

申请日：1999-11-30

Applicant: SUN MICROSYSTEMS INC

Inventor： PABLA KULDIPSINGH ,  KAN TU-TUNG ,  BREGMAN ERIC ,  NARAYANAN VENKATESH

IPC: G06F3/048 ,  G06F3/023 ,  G06F3/033 ,  G06F17/30 ,  G06F3/00

Abstract: PROBLEM TO BE SOLVED: To make selection of a desired display element easier by determining the element according to the position of the element in the relation between navigation input from a user and a generated inquiry anchor. SOLUTION: In order to assist determination of the display element selected according to the user input, the inquiry anchor is initialized first to a set of default values (S51). After the anchor is initialized, one of display elements to be selected is designated as a start point for navigation to other display elements (S52) and the user's navigation input is accepted (S53). According to this user input, the new display element is selected (S54). For example, when overlapping, the right and left, and upper and lower values of the anchor are so adjusted to equal the values of the newly selected display element (S55). Further, when a new display element is selected, the user inputs a new navigation choice and then the process is repeated.

公开(公告)号：JP2000200181A

公开(公告)日：2000-07-18

申请号：JP34041799

申请日：1999-11-30

Applicant: SUN MICROSYSTEMS INC

Inventor： KANUNGO RAJESH

IPC: G06F3/14 ,  G06F3/048 ,  G06F9/06 ,  G06F9/44 ,  H04N5/45

Abstract: PROBLEM TO BE SOLVED: To enable a user to control and display video data through a web page interface by receiving user input by an applet by interposing a virtual control panel displayed on a web page. SOLUTION: The process of receiving the user input by the applet by interposing the virtual control panel displayed on the web page by the applet and the process of controlling the display of the video data on the web page by the applet based on the user input, etc., are provided. For instance, for a data processing system, data and data structure 114 is provided with the web page capable of display by a browser 106. Also, for instance, the data and data structure 114 can be provided with an applet software capable of execution by a java virtual machine JVM 108.

公开(公告)号：JP2000200179A

公开(公告)日：2000-07-18

申请号：JP34025299

申请日：1999-11-30

Applicant: SUN MICROSYSTEMS INC

Inventor： KANUNGO RAJESH ,  NARAYANAN VENKATESH

IPC: G06F3/14 ,  G06F3/048 ,  G06F9/06 ,  G06F9/44 ,  G06F9/54

Abstract: PROBLEM TO BE SOLVED: To enable a user to display graphics without using a complicated windowing system by implementing an independent slave context for respective applets (or browser elements similar to them). SOLUTION: By a browser, a user input event is transmitted to a virtual execution environment. Then, a master context 314 inside the browser and the slave context 302 respectively corresponding to the applet executed by the browser are provided inside the virtual execution environment. Then, the graphic based on the user input event is written to the part of a browser memory relating to the slave context 302. Then, by the browser, the graphic is fetched from the part of the browser memory relating to the slave context 302 into the master context 314 and the graphic stored inside the master context 314 is displayed onto a display screen.

公开(公告)号：JP2000194558A

公开(公告)日：2000-07-14

申请号：JP4908199

申请日：1999-02-25

Applicant: SUN MICROSYSTEMS INC

Inventor： BEYLIN BORIS ,  GROVER VINOD

IPC: G06F9/45 ,  G06F9/44 ,  G06F9/445

Abstract: PROBLEM TO BE SOLVED: To provide an efficient mechanism for calling program operation in the initial active use of an OOP object or data structure. SOLUTION: The program operation can be used to initialize the object- oriented programming(OOP) object or data structure. An initial access mechanism is forced to cause misarray memory access trouble (trap) by trying non- byte access mode memory access to an odd-numbered byte address, then the initial active use of the data structure or OOP object is detected. When this trouble is processed, the access mechanism is so converted that initial and following non-byte access mode memory access will be successful. Further, the OOP object or data structure is initialized. Then initial access to the OOP object or data structure having just been initialized is tried repeatedly by using the converted access mechanism.

公开(公告)号：JP2000172618A

公开(公告)日：2000-06-23

申请号：JP13800899

申请日：1999-05-19

Applicant: SUN MICROSYSTEMS INC

Inventor： CHAUHAN ABHISHEK

IPC: G06F13/00 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04L29/12

Abstract: PROBLEM TO BE SOLVED: To optimize access so that it is easy for a user to understand by allowing an optimizer name server(ONS) to answer to the user via a selection scheme, such as a round-robin scheme, when an optimum route is not determined yet and further determine an optimum route regarding the user. SOLUTION: This ONS 404 requests mirror servers 406a and 406b to find a round-trip time of a local name server(LNS) 402. The mirror servers 406a and 406b send name inquiries to the LNS 402 respectively. The LNS 402 sends back an error message, showing that the requested name does not exist. The mirror servers 406a and 406b find the round-trip times from the transmission time of the name inquiries to the error message reception time and send them to the ONS 404. The ONS 404 decides which mirror server 406 has the optimum route.