Method and apparatus for defining test sequences for a signal measurement system

• US 4,949,290 A
• Filed: 04/05/1988
• Issued: 08/14/1990
• Est. Priority Date: 04/05/1988
• Status: Expired due to Term

• Current Assignee: Agilent Technologies, Inc.
• Original Assignee: Hewlett-Packard Company (HP Inc.)
• Inventors: Loder, Robert T. Jr., Pike, William T.
• Primary Examiner(s): Teska, Kevin J.
• Application Number:
  US07/178,036
• Time in Patent Office: 861 Days
• Field of Search: 364/146, 364/191, 364/710.07, 364/709.14, 364/580, 364/480, 364/481, 364/483, 364/485, 364/550, 364/487, 371/20, 324/73 R, 324/73 PC, 324/76 R, 324/77 B
• US Class Current: 702/123
• CPC Class Codes: G01R 27/04 in circuits having distributed constants , e.g. having very long conductors or involving high frequencies
• CPC Class Codes: G01R 31/2834 Automated test systems [ATE]; using microprocessors or computers G01R31/317 takes precedence; ATE for detection of defective computer hardware G06F11/2736
• CPC Class Codes: G01R 31/31912 Tester/user interface

Abstract

A signal measurement system with softkey menus for enabling a user to select a desired test setup, including selection of test measurement for a device. The signal measurement system prompts the user with a set of displayed softkey selections via a user interface to step the user through the setup process. Preferably, a signal processing unit (or analyzer) included in the signal measurement system incorporates the user interface in firmware to aid the user in entering a test sequence for the device to be tested. The analyzer preferably displays the softkey menus on a cathode ray tube included in the analyzer to guide the user. The user is guided through the test sequencing procedure by depressing softkeys. A set of softkey labels (softkey menu) is presented on the display of the analyzer by the firmware for each step in the test sequencing series. As each step of a desired test sequence is entered by the user, the step is displayed on the CRT. Also, the displayed steps are preferably overlaid on data measured in accordance with the test sequence.

Claims

1. A method for enabling a user to define a test sequence during setup of a signal measurement system, comprising the steps of:

providing a user of the signal measurement system with softkey menus for selecting a desired series of test steps, including measurement selection for a device to be tested, for combination into a test sequence for execution as a single measurement process;

measuring data using the selected test sequence;

displaying the measured data; and

displaying the steps in the selected test sequence, as the steps of the test sequence are entered, as an overlay on displayed data measured using the selected test sequence.

2. The method of claim 1, further comprising the step of programming a signal processing unit included in the signal measurement with firmware to enable the user to enter the test sequence for the device to be tested by the signal measurement system for a desired test.

3. The method of claim 1, further comprising the step of providing the user of the signal measurement system with softkey menus for selecting one of a calibration measurement and a test measurement for the device to be tested.

4. The method of claim 1 wherein the signal measurement system is a vector network analyzer for measuring performance of RF and microwave systems and components.

5. The method of claim 1 wherein each softkey menu comprises a set of textual selections displayed via a user interface for prompting the user to key in the test sequence.

6. The method of claim 5 wherein the step of displaying softkey menus to the user comprises displaying software menus on a cathode ray tube incorporated in the user interface of a signal processing unit, the signal processing unit being included in the signal measurement system.

7. In a method of operation of a signal measurement system, the improvement comprising the steps of:

enabling a user of the signal measurement system to select a desired series of test steps, including measurement selection, for combination into a test sequence for execution as a single measurement process;

measuring data using the selected test sequence;

displaying the measured data; and

displaying the steps in the selected test sequence, as the steps of the test sequence are entered, as an overlay on displayed data measured using the selected test sequence.

8. A signal measurement system incorporating user definition of test sequences, comprising:

a display for displaying measured data;

means for providing images on the display for enabling the user to define a test sequence during setup of the signal measurement system, the test sequence being stored for recall and execution;

means for measuring data using the defined test sequence; and

means for displaying steps in the defined test sequence, as the steps of the test sequence are entered, as an overlay on displayed data measured using the defined test sequence.

9. The signal measurement system of claim 8 wherein the images comprise softkey menus and each softkey menu comprises a set of textual selections displayed by the display for prompting the user to key in the test sequence.

10. The signal measurement system of claim 8 wherein a signal processing unit included in the signal measurement system incorporates firmware to aid the user in entering a test sequence for a device to be tested by the signal measurement system for a desired test.

11. The signal measurement system of claim 8 wherein the display comprises a cathode ray tube incorporated in a signal processing unit, the signal processing unit being included in the signal measurement system.

12. The signal measurement system of claim 8, further comprising means for providing the user of the signal measurement system with softkey menus for selecting one of a calibration measurement and a test measurement for a device to be tested.

13. The signal measurement system of claim 8 wherein the signal measurement system is vector network analyzer for measuring performance of RF and microwave systems and components.

14. The signal measurement system of claim 8, further comprising means for measuring a device under test.