
William C. Choi
Examiner (ID: 3782, Phone: (571)272-2324 , Office: P/2872 )
| Most Active Art Unit | 2872 |
| Art Unit(s) | 2872, 2873 |
| Total Applications | 2412 |
| Issued Applications | 2216 |
| Pending Applications | 104 |
| Abandoned Applications | 130 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 4416536
[patent_doc_number] => 06172829
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 2001-01-09
[patent_title] => 'Digital audio tape recording/reproducing apparatus for use with multiple formats'
[patent_app_type] => 1
[patent_app_number] => 9/153801
[patent_app_country] => US
[patent_app_date] => 1998-09-15
[patent_effective_date] => 0000-00-00
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[patent_no_of_words] => 10122
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[pdf_file] => patents/06/172/06172829.pdf
[firstpage_image] =>[orig_patent_app_number] => 153801
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/153801 | Digital audio tape recording/reproducing apparatus for use with multiple formats | Sep 14, 1998 | Issued |
Array
(
[id] => 4368132
[patent_doc_number] => 06219196
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 2001-04-17
[patent_title] => 'Method and apparatus for suppressing mechanical resonance in a disk drive storage device using a notch filter'
[patent_app_type] => 1
[patent_app_number] => 9/153199
[patent_app_country] => US
[patent_app_date] => 1998-09-14
[patent_effective_date] => 0000-00-00
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[pdf_file] => patents/06/219/06219196.pdf
[firstpage_image] =>[orig_patent_app_number] => 153199
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/153199 | Method and apparatus for suppressing mechanical resonance in a disk drive storage device using a notch filter | Sep 13, 1998 | Issued |
Array
(
[id] => 4261555
[patent_doc_number] => 06222691
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 2001-04-24
[patent_title] => 'Interleaved dibit detection for direct access storage device (DASD)'
[patent_app_type] => 1
[patent_app_number] => 9/151566
[patent_app_country] => US
[patent_app_date] => 1998-09-11
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[firstpage_image] =>[orig_patent_app_number] => 151566
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/151566 | Interleaved dibit detection for direct access storage device (DASD) | Sep 10, 1998 | Issued |
Array
(
[id] => 4417861
[patent_doc_number] => 06239937
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 2001-05-29
[patent_title] => 'Adaptive last-track positioning scheme for hard-disk drive formatting'
[patent_app_type] => 1
[patent_app_number] => 9/150881
[patent_app_country] => US
[patent_app_date] => 1998-09-10
[patent_effective_date] => 0000-00-00
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[firstpage_image] =>[orig_patent_app_number] => 150881
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/150881 | Adaptive last-track positioning scheme for hard-disk drive formatting | Sep 9, 1998 | Issued |
Array
(
[id] => 4285619
[patent_doc_number] => 06324026
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 2001-11-27
[patent_title] => 'Readable indelible mark on storage media'
[patent_app_type] => 1
[patent_app_number] => 9/149678
[patent_app_country] => US
[patent_app_date] => 1998-09-09
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[pdf_file] => patents/06/324/06324026.pdf
[firstpage_image] =>[orig_patent_app_number] => 149678
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/149678 | Readable indelible mark on storage media | Sep 8, 1998 | Issued |
Array
(
[id] => 4146665
[patent_doc_number] => 06122120
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 2000-09-19
[patent_title] => 'Record reproduction apparatus'
[patent_app_type] => 1
[patent_app_number] => 9/150368
[patent_app_country] => US
[patent_app_date] => 1998-09-09
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[pdf_file] => patents/06/122/06122120.pdf
[firstpage_image] =>[orig_patent_app_number] => 150368
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/150368 | Record reproduction apparatus | Sep 8, 1998 | Issued |
Array
(
[id] => 4419203
[patent_doc_number] => 06229659
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 2001-05-08
[patent_title] => 'Methods and apparatus for storing data and auxiliary information'
[patent_app_type] => 1
[patent_app_number] => 8/532776
[patent_app_country] => US
[patent_app_date] => 1998-09-09
[patent_effective_date] => 0000-00-00
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[pdf_file] => patents/06/229/06229659.pdf
[firstpage_image] =>[orig_patent_app_number] => 532776
[rel_patent_id] =>[rel_patent_doc_number] =>) 08/532776 | Methods and apparatus for storing data and auxiliary information | Sep 8, 1998 | Issued |
Array
(
[id] => 1498919
[patent_doc_number] => 06404573
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2002-06-11
[patent_title] => 'Full and half-rate signal space detection for channels with a time-varying MTR'
[patent_app_type] => B1
[patent_app_number] => 09/150259
[patent_app_country] => US
[patent_app_date] => 1998-09-09
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[pdf_file] => patents/06/404/06404573.pdf
[firstpage_image] =>[orig_patent_app_number] => 09150259
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/150259 | Full and half-rate signal space detection for channels with a time-varying MTR | Sep 8, 1998 | Issued |
Array
(
[id] => 4315754
[patent_doc_number] => 06188532
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 2001-02-13
[patent_title] => 'Backward compatible head and head positioning assembly for a linear digital tape drive'
[patent_app_type] => 1
[patent_app_number] => 9/149733
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[patent_app_date] => 1998-09-08
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[firstpage_image] =>[orig_patent_app_number] => 149733
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/149733 | Backward compatible head and head positioning assembly for a linear digital tape drive | Sep 7, 1998 | Issued |
Array
(
[id] => 763565
[patent_doc_number] => 07012772
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2006-03-14
[patent_title] => 'Sampled amplitude read channel employing an adaptive non-linear correction circuit for correcting non-linear distortions in a read signal'
[patent_app_type] => utility
[patent_app_number] => 09/145524
[patent_app_country] => US
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Array
(
[id] => 4362169
[patent_doc_number] => 06215608
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 2001-04-10
[patent_title] => 'Hardware inhibit for a disk drive digital servo control system'
[patent_app_type] => 1
[patent_app_number] => 9/143801
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[patent_app_date] => 1998-08-31
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[pdf_file] => patents/06/215/06215608.pdf
[firstpage_image] =>[orig_patent_app_number] => 143801
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/143801 | Hardware inhibit for a disk drive digital servo control system | Aug 30, 1998 | Issued |
Array
(
[id] => 4228589
[patent_doc_number] => 06111711
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 2000-08-29
[patent_title] => 'Fast charge and thermal asperity compensation circuit'
[patent_app_type] => 1
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[firstpage_image] =>[orig_patent_app_number] => 138960
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/138960 | Fast charge and thermal asperity compensation circuit | Aug 23, 1998 | Issued |
Array
(
[id] => 4261612
[patent_doc_number] => 06222695
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 2001-04-24
[patent_title] => 'System and method for a preamplifier write circuit with reduced rise/fall time'
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[rel_patent_id] =>[rel_patent_doc_number] =>) 09/131766 | System and method for a preamplifier write circuit with reduced rise/fall time | Aug 9, 1998 | Issued |
Array
(
[id] => 4416583
[patent_doc_number] => 06172833
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[patent_issue_date] => 2001-01-09
[patent_title] => 'Retrieval of serpentine pattern data using a memory device of a tape cartridge'
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[patent_app_number] => 9/128737
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[rel_patent_id] =>[rel_patent_doc_number] =>) 09/128737 | Retrieval of serpentine pattern data using a memory device of a tape cartridge | Aug 4, 1998 | Issued |
Array
(
[id] => 4419213
[patent_doc_number] => 06229660
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[patent_issue_date] => 2001-05-08
[patent_title] => 'Method and apparatus for reading information recording field of hard disk drive to enable reliable adjustment of automatic gain control and phase-locked loop'
[patent_app_type] => 1
[patent_app_number] => 9/122652
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[firstpage_image] =>[orig_patent_app_number] => 122652
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/122652 | Method and apparatus for reading information recording field of hard disk drive to enable reliable adjustment of automatic gain control and phase-locked loop | Jul 26, 1998 | Issued |
Array
(
[id] => 4301314
[patent_doc_number] => 06212025
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[patent_issue_date] => 2001-04-03
[patent_title] => 'Magnetic recording and reproducing method and apparatus employing a magnetically continuous magnetic film'
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[patent_app_number] => 9/122798
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[rel_patent_id] =>[rel_patent_doc_number] =>) 09/122798 | Magnetic recording and reproducing method and apparatus employing a magnetically continuous magnetic film | Jul 26, 1998 | Issued |
Array
(
[id] => 4417770
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[patent_title] => 'Technique for reassigning data sector by detecting soft defect'
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Array
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Array
(
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[firstpage_image] =>[orig_patent_app_number] => 117093
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/117093 | Drum motor controller using microcomputer for intermittent slow VTR | Jul 21, 1998 | Issued |
Array
(
[id] => 4416071
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[patent_title] => 'Disc driving device with rotational velocity control'
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[firstpage_image] =>[orig_patent_app_number] => 120443
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/120443 | Disc driving device with rotational velocity control | Jul 21, 1998 | Issued |