IP Library Granted Patent US 7,404,109
Granted Patent B2
US 7,404,109 · App. 10/736,438 · Granted Jul 22, 2008

Systems and methods for adaptively compressing test data

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Quick Facts
Patent No.
US 7,404,109
App. No.
10/736,438
Granted
Jul 22, 2008
Kind
B2
Abstract

Systems and methods for adaptively compressing test data are disclosed. One such method comprises the steps of examining a test data file that includes a first plurality of data units corresponding to a first plurality of DUT pins and a second plurality of data units corresponding to a second plurality of DUT pins, compressing the first plurality of data units using a first compression technique, and compressing the second plurality of data units using a second compression technique.

Claims (16)

1. A method for adaptively compressing test data to be provided to a device under test (DUT), the method comprising the steps of:

examining a test data file that includes test data configured to enable testing the DUT, the test data file including a first plurality of data units and a second plurality of data units, the first plurality of data units corresponding to a first plurality of DUT pins, and the second plurality of data units corresponding to a second plurality of DUT pins, wherein the first plurality of DUT pins are clock-pins and the second plurality of DUT pins are non-clock-pins;

determining that the first plurality of data units have a first compressibility characteristic; and

determining that the second plurality of data units have a second compressibility characteristic.

2. The method of claim 1 , further comprising the step of: compressing the first plurality of data units independently from the second plurality of data units.

3. The method of claim 1 , wherein the test data file is one of a STIL (standard test interface language) file and a WGL (waveform generation language) file.

4. The method of claim 1 , wherein the first plurality of data units have a different timing complexity, a different vector data volume, and more repetitive data patterns than the second plurality of data units.

5. A system for adaptively compressing test data to be provided to a device under test (DUT), the system comprising:

memory configured to store a test data file that includes test data configured to enable testing the DUT, the test data file including a first plurality of data units and a second plurality of data units, the first plurality of data units corresponding to a first plurality of DUT pins, and the second plurality of data units corresponding to a second plurality of DUT pins, wherein the first plurality of DUT pins are clock-pins and the second plurality of DUT pins are non-clock-pins; and

a processor that is operative to:

determine that the first plurality of data units have a first compressibility characteristic;

determine that the second plurality of data units have a second compressibility characteristic.

6. The system of claim 5 , wherein the processor is operative to:

compress the first plurality of data units independently from the second plurality of data units.

7. The system of claim 5 , wherein the test data file is one of a STIL (standard test interface language) file and a WGL (waveform generation language) file.

8. The system of claim 5 , wherein the first plurality of data units have a different timing complexity, a different vector data volume, and more repetitive data patterns than the second plurality of data unit.

Assignments (6)
CHANGE OF ADDRESS Recorded Dec 18, 2018
From: ADVANTEST CORPORATION
To: ADVANTEST CORPORATION
Reel/Frame 047987/0626 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE ADDRESS PREVIOUSLY RECORDED AT REEL: 035371 FRAME: 0265. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Apr 14, 2015
From: ADVANTEST (SINGAPORE) PTE. LTD.
To: ADVANTEST CORPORATION
Reel/Frame 035425/0768 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 6, 2015
From: ADVANTEST (SINGAPORE) PTE. LTD.
To: ADVANTEST CORPORATION
Reel/Frame 035371/0265 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2012
From: VERIGY (SINGAPORE) PTE LTD
To: ADVANTEST (SINGAPORE) PTE LTD
Reel/Frame 027896/0018 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2007
From: AGILENT TECHNOLOGIES, INC.
To: VERIGY (SINGAPORE) PTE. LTD.
Reel/Frame 019015/0119 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 5, 2004
From: HILDEBRANT, ANDREW S.; CHINDAMO, DOMENICO
To: AGILENT TECHNOLOGIES, INC.
Reel/Frame 014493/0654 →