Contents About PULSTEC BD (SL/DL), TL/QL New measurement items - - PowerPoint PPT Presentation

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High Speed Multi Tester for Blu-rayTM （BD-R, RE and ROM）

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MediaTech in Macau March 16th 2011

Contents

• About PULSTEC
• BD (SL/DL), （TL/QL）
• New measurement items for （i-MLSE, R-SER ）
• Write strategy Adjustment based on Specifications
• Write and Read function（MASTER）
• BD(SL/DL) 2x measurement（MASTER）

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• The position of Our system

About PULSTEC

ODU-1000

Evaluation system for R&D division (ODU-1000)

 All of Testing Center and Class A Lab adopted ODU system

（ It is industry standard for optical disc system ）

DVD standard Drive unit (SDP-1000)

 SDP drive is integrated for DVD CATS and DaTARIUS.

This drive was designed and manufactured at Pulstec

SDP-1000

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For Device Inspection → iｰMLSE unit

ODU-1000 MASTER

• Line up （for Blu-ray Disc）

R&D，Verification R&D，QA Manufacture Factory i-MLSE unit

About PULSTEC

For QA and Production → MASTER

For R&D and QA → ODU-1000

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BD (SL/DL)＆BDXL(TL/QL)

• Difference between BD &BDXL on the Book Spec

Main in param ameters ers BD SL/DL BDXL TL/QL Single sided disc SL or DL TL or QL Nominal wobble frequency at Reference Velocity 956.522 kHz 1913.043 kHz （2ｘ） Channel bit rate at Reference Velocity 66.0 Mbit/s 132.0 Mbit/s （2ｘ） User Data transfer rate at Reference Velocity 35.965 Mbit/s 71.93 Mbit/s （2ｘ） User Data capacity 120 mm 25GB (SL) 50GB (DL) 100GB (TL) 128GB (QL) Channel bit length 74.50 nm 74.50 nm 55.87 nm 58.25 nm Data bit length 111.75 nm 111.75 nm 83.81 nm 87.39 nm Nominal wobble length 5.1405 um 5.1405 um 3.8553 um 4.0200 um Reference Velocity 4.917 m/s 4.917 m/s 7.376 m/s（2 ｘ） 7.690 m/s （2 ｘ）

・ More Capacity ・・・・・・・・・・・・ 33GB/Layer ・ Higher playback speed

（Transfer Late）・・・ 2x

・ Channel bit length is smaller ・・・・ 55.87nm 2T mark length is over the optical limits, therefore high-frequency signal qlty is deteriorated compared with BD SL/DL.

□ ODU □ MASTER □ i-MLSE unit

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BD (SL/DL)＆BDXL(TL/QL)

• Difference in the actual signal quality

BDXL HF signal with 2x playback ※ It is difficult to cross especially 2T mark&space by slicer. Impossible to use Limit-EQ for jitter measurement. BD(SL,DL)HF signal

□ ODU □ MASTER □ i-MLSE unit

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BD (SL/DL) & BDXL(TL/QL)

• New function is needed instead of current Limit-EQ

Measurement items by using PR (1,2,2,2,1) for BDXL(TL/QL) Spec ・ i-MLSE ・ R-SER (Viterbi) ・ L-SEAT

New function; PR (1,2,2,2,1)

□ ODU □ MASTER □ i-MLSE unit

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New measurement items for BDXL (i-MLSE, R-SER)

• PULSTEC system support all new items

□ i-MLSE □ R-SER（Viterbi） □ Write strategy adjustment

i-MLSE unit MASTER BDXL-Tester

□ ODU □ MASTER □ i-MLSE unit

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• Difference binarized method for BD（SL/DL）& BDXL(TL/QL)

HF signal C-EQ Limit-EQ Auto-slicer

 BD SL/DL

Decord (R-SER） Binary

 BDXL TL/QL

Digital EQ （PR） Viterbi decoder （ML） Decord (R-SER） Binary

□ ODU □ MASTER □ i-MLSE unit

HF signal

New measurement items for BDXL (i-MLSE)

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• Dependence on binarized method difference

Measured signal ; BD 25GB different asymmetry Measured item ; i-MLSE, Jitter

• result -

Two methods have different relationship with asymmetry and respectively.

Jitter / i-MLSE 2 4 6 8 10 12 14 16 22 26 30 34 38 42 46 Radius [mm] Jitter / i-MLSE [%]

• 0.3
• 0.2
• 0.1

0.0 0.1 0.2 0.3 0.4 0.5 Asymmetry Jitter.B i-MLSE Asym

□ ODU □ MASTER □ i-MLSE unit

New measurement items for BDXL (i-MLSE)

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Jitter / RSER.1k 2 4 6 8 10 12 14 16 22 26 30 34 38 42 46 Radius [mm] Jitter [%] 1.0E-07 1.0E-06 1.0E-05 1.0E-04 1.0E-03 Jitter.B RSER.1k

i-MLSE / Vitervi.1k 4 6 8 10 12 14 16 18 20 22 26 30 34 38 42 46 Radius [mm] i-MLSE [%] 1.0E-07 1.0E-06 1.0E-05 1.0E-04 1.0E-03 i-MLSE Vitervi.1k

• i-MLSE vs RSER(Viterbi), Jitter vs RSER (binarize)

Both i-MLSE vs RSER(viterbi） and Jitter vs RSER have close correlation

New measurement items for BDXL (i-MLSE)

□ ODU □ MASTER □ i-MLSE unit

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• How to measure i-MLSE

i-MLSE unit is very user friendly like Jitter meter

The easiest way・・・(i-MLSE unit)  Complete test including i-MLSE・・・

（ODU/MASTER）

i-MLSE unit

ODU BDXL-Tester→ all in one system (Write and read) MASTER→ Playback only

MASTER BDXL-Tester

New measurement items for BDXL (i-MLSE)

□ ODU □ MASTER □ i-MLSE unit

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Write strategy Adjustment

• Edge shift Measurement

To quantify shift between reference position of edge and recorded mark (or space) edge. Both edge shift and variance of edges can be measured. shift from reference position

＋ －

□ ODU □ MASTER □ i-MLSE unit

• WS is optimized by using Edge shift measurement

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Write and Read function（MASTER）

• Writing and reading with MASTER

 MASTER is possible to connect with writer (drive) Consumer drive Measurement （MASTER） Write→Meas Setting （MASTER ） Handling system ・ Write power margin ・ Write strategy optimize ・ Write speed ・ OPC ON/OFF

□ ODU □ MASTER □ i-MLSE unit

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• Setup for power margin measurement

① ② ① position、width

【e.g.】 width = 0.200 mm blank = 0.000 mm bands = 8 bands

③

Write and Read function (MASTER)

□ ODU □ MASTER □ i-MLSE unit

② write power variable range of observations

【e.g.】 raise Power = 11.00 mW fall Power = 18.00 mW （Step= 1.00 mW）

③ Write strategy

【e.g.】 Drive recommend setting

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• Power margin

 PwSwp（11mW～18mW） （WS=Drive recommend）  Write

：Consumer Drives

 Measurement

：MASTER

Write and Read function (MASTER)

□ ODU □ MASTER □ i-MLSE unit

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• Write strategy modifications

Each pulses and Write power can be modified by Write strategy Editor.

□ ODU □ MASTER □ i-MLSE unit

Write and Read function (MASTER)

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• 2x measurement with MASTER

 Target Media

 BD-R （SL,DL）  BD-RE （SL,DL）  BD-ROM （SL,DL）  BDXL BD-R

（TL,QL）

 BDXL BD-RE

（TL） 1x 2x

BD(SL/DL) 2ｘ items

2x HF signal 2x Servo signal 2x Jitter signal 2x RSER

※ It is possible to show you both 2x and 1x data and possible to compare. ※ 3point Optimize＋Full surface measurement is finished by 1.95x

BD 2x Measurement (MASTER)

□ ODU □ MASTER □ i-MLSE unit

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BD 2x Measurement (MASTER)

• BD-ROM 1x and 2x correlation

• 0.15
• 0.1
• 0.05

Axial Radial Jitter HF asym RSER

・ 3point optimize 1x 2x □ ODU □ MASTER □ i-MLSE unit

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High speed Multi Tester for Blu-ray Disc TM

PULSTEC offers the highest quality performance.

Thanks for your attentions!!

High speed multi testers for all kinds of Blu-ray DiscTM are available.