Viewer for test apparatus hardware

• US 20060174161A1
• Filed: 02/01/2005
• Published: 08/03/2006
• Est. Priority Date: 02/01/2005
• Status: Abandoned Application

• Current Assignee: Credence Systems Corporation (COHU Incorporated)
• Original Assignee: Credence Systems Corporation (COHU Incorporated)
• Inventors: Sharma, Yogendra Kumar
• Application Number:
  US11/049,099
• Publication Number:
  US 20060174161A1
• Time in Patent Office: Days
• US Class Current: 714/38
• CPC Class Codes: G06F 11/2294 by remote test

Abstract

A common viewer framework simplifies the viewer development process and significantly reduces the development time and cost of viewer development. Based on this framework, viewers for different hardware devices are developed according to a common application programming interface (API) and operate as plug-ins to a common viewer tool. Also, the API may be provided as part of a software development kit (SDK) to the maker of the hardware device to be viewed, so that the task of developing viewers can be delegated to the individuals with special knowledge of the hardware devices.

Claims

1. A viewer display system to be connected to an apparatus having a plurality of hardware devices and viewer files associated with the hardware devices, the viewer display system comprising a processing unit for executing an interface program that is compatible with each of the viewer files to render a viewer display for one or more of the hardware devices.

2. The viewer display system according to claim 1, wherein the interface program is configured to communicate with the viewer files through an application programming interface that has been pre-defined for the interface program.

3. The viewer display system according to claim 1, wherein the interface program is configured to query the apparatus for a list of viewer files associated with the hardware devices and display the list for selection.

4. The viewer display system according to claim 3, wherein the interface program is further configured to retrieve a selected viewer file from the apparatus and then render the viewer display using the selected viewer file.

5. The viewer display system according to claim 1, wherein the viewer display comprises a graphical user interface.

6. The viewer display system according to claim 5, wherein the graphical user interface includes input fields for modifying a parameter of a component of the hardware device.

7. The viewer display system according to claim 1, wherein the connection to the apparatus comprises a connection over a computer network.

8. The viewer display system according to claim 1, wherein the viewer files comprise dynamic link library (DLL) files.

9. A test apparatus comprising:

a plurality of hardware modules; and

a plurality of viewer files associated with said hardware modules, each of said viewer files containing a hardware representation of one of said hardware modules,

wherein the viewer files associated with two or more hardware modules are defined in accordance with a common set of interface rules such that the hardware representations of said two or more hardware modules can be rendered on a display device using a common viewer tool.

10. The test apparatus according to claim 9, wherein the viewer files comprise graphical user interfaces using which inputs are entered.

11. The test apparatus according to claim 10, wherein the inputs comprise a command to modify a physical parameter of a component of a hardware module.

12. The test apparatus according to claim 10, wherein the viewer files comprise DLL files.

13. The test apparatus according to claim 9, further comprising a processing unit programmed to compile a list of available viewer files and retrieve one of the viewer files in response to a request from a remote computer connected to the test apparatus over a computer network.

14. The test apparatus according to claim 13, wherein the processing unit is further programmed to transmit the retrieved viewer file to the remote computer and to receive inputs made through a viewer display generated from the transmitted viewer file from the remote computer.

15. A method of designing or debugging a test program for a test apparatus having a plurality of hardware modules, comprising the steps of:

accessing and displaying a viewer file for a first hardware module that contains a hardware representation of the first hardware module using a viewer tool;

accessing and displaying a viewer file for a second hardware module that contains a hardware representation of the second hardware module using the same viewer tool; and

entering inputs through the displayed viewer file for one of the first and second hardware modules.

16. The method according to claim 15, wherein the inputs comprise a command to modify a parameter of a component of a hardware module.

17. The method according to claim 15, further comprising the step of initiating the viewer tool and transmitting a request for a list of available viewer files prior to the steps of accessing and displaying.

18. The method according to claim 17, wherein the step of accessing a viewer file comprises the steps of requesting a viewer file from the list and receiving the requested viewer file.

19. The method according to claim 15, wherein the steps of displaying and entering are carried out at a remote computer that is connected to the test apparatus over a computer network.

20. The method according to claim 19, wherein the viewer files are displayed at the remote computer concurrently.