Search

Henry Choe

Examiner (ID: 9269, Phone: (571)272-1760 , Office: P/2842 )

Most Active Art Unit
2817
Art Unit(s)
2843, 2817, 2842
Total Applications
3679
Issued Applications
3391
Pending Applications
196
Abandoned Applications
146

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 4614772 [patent_doc_number] => 07990217 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-08-02 [patent_title] => 'Input system for a variable gain amplifier having class-AB transconductance stages' [patent_app_type] => utility [patent_app_number] => 12/353698 [patent_app_country] => US [patent_app_date] => 2009-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 19 [patent_no_of_words] => 8345 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/990/07990217.pdf [firstpage_image] =>[orig_patent_app_number] => 12353698 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/353698
Input system for a variable gain amplifier having class-AB transconductance stages Jan 13, 2009 Issued
Array ( [id] => 7531037 [patent_doc_number] => 07843262 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-11-30 [patent_title] => 'High efficiency power amplifier' [patent_app_type] => utility [patent_app_number] => 12/351876 [patent_app_country] => US [patent_app_date] => 2009-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4424 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/843/07843262.pdf [firstpage_image] =>[orig_patent_app_number] => 12351876 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/351876
High efficiency power amplifier Jan 11, 2009 Issued
Array ( [id] => 93601 [patent_doc_number] => 07733172 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-06-08 [patent_title] => 'DC self-biased vacuum tube differential amplifier with grid-to-cathode over-voltage protection' [patent_app_type] => utility [patent_app_number] => 12/351884 [patent_app_country] => US [patent_app_date] => 2009-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3830 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/733/07733172.pdf [firstpage_image] =>[orig_patent_app_number] => 12351884 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/351884
DC self-biased vacuum tube differential amplifier with grid-to-cathode over-voltage protection Jan 11, 2009 Issued
Array ( [id] => 25390 [patent_doc_number] => 07795968 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2010-09-14 [patent_title] => 'Power ranging transmit RF power amplifier' [patent_app_type] => utility [patent_app_number] => 12/319898 [patent_app_country] => US [patent_app_date] => 2009-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 6918 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/795/07795968.pdf [firstpage_image] =>[orig_patent_app_number] => 12319898 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/319898
Power ranging transmit RF power amplifier Jan 11, 2009 Issued
Array ( [id] => 4518962 [patent_doc_number] => 07911268 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-03-22 [patent_title] => 'Apparatus and method for improving the feedback linearity of a 1.5-bit sigma-delta class-D amplifier' [patent_app_type] => utility [patent_app_number] => 12/318659 [patent_app_country] => US [patent_app_date] => 2009-01-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2050 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 217 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/911/07911268.pdf [firstpage_image] =>[orig_patent_app_number] => 12318659 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/318659
Apparatus and method for improving the feedback linearity of a 1.5-bit sigma-delta class-D amplifier Jan 5, 2009 Issued
Array ( [id] => 4601171 [patent_doc_number] => 07978007 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-07-12 [patent_title] => 'Feedback network for cascaded amplifiers' [patent_app_type] => utility [patent_app_number] => 12/345609 [patent_app_country] => US [patent_app_date] => 2008-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4408 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/978/07978007.pdf [firstpage_image] =>[orig_patent_app_number] => 12345609 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/345609
Feedback network for cascaded amplifiers Dec 28, 2008 Issued
Array ( [id] => 5432846 [patent_doc_number] => 20090167432 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-07-02 [patent_title] => 'INSTRUMENTATION AMPLIFICATION WITH INPUT OFFSET ADJUSTMENT' [patent_app_type] => utility [patent_app_number] => 12/342614 [patent_app_country] => US [patent_app_date] => 2008-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 9668 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0167/20090167432.pdf [firstpage_image] =>[orig_patent_app_number] => 12342614 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/342614
INSTRUMENTATION AMPLIFICATION WITH INPUT OFFSET ADJUSTMENT Dec 22, 2008 Abandoned
Array ( [id] => 93707 [patent_doc_number] => 07737783 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-06-15 [patent_title] => 'Differential amplifier' [patent_app_type] => utility [patent_app_number] => 12/343303 [patent_app_country] => US [patent_app_date] => 2008-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 15295 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/737/07737783.pdf [firstpage_image] =>[orig_patent_app_number] => 12343303 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/343303
Differential amplifier Dec 22, 2008 Issued
Array ( [id] => 5488636 [patent_doc_number] => 20090289707 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-11-26 [patent_title] => 'DISTORTION COMPENSATION APPARATUS AND METHOD' [patent_app_type] => utility [patent_app_number] => 12/342394 [patent_app_country] => US [patent_app_date] => 2008-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 8913 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0289/20090289707.pdf [firstpage_image] =>[orig_patent_app_number] => 12342394 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/342394
Distortion compensation apparatus and method Dec 22, 2008 Issued
Array ( [id] => 7546155 [patent_doc_number] => 08054129 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-11-08 [patent_title] => 'Class D amplifier' [patent_app_type] => utility [patent_app_number] => 12/317613 [patent_app_country] => US [patent_app_date] => 2008-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 12518 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/054/08054129.pdf [firstpage_image] =>[orig_patent_app_number] => 12317613 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/317613
Class D amplifier Dec 22, 2008 Issued
Array ( [id] => 7507581 [patent_doc_number] => 20110254629 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-10-20 [patent_title] => 'MULTI STAGE AMPLIFIER' [patent_app_type] => utility [patent_app_number] => 13/141636 [patent_app_country] => US [patent_app_date] => 2008-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2431 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0254/20110254629.pdf [firstpage_image] =>[orig_patent_app_number] => 13141636 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/141636
Multi stage amplifier Dec 21, 2008 Issued
Array ( [id] => 45615 [patent_doc_number] => 07777563 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-08-17 [patent_title] => 'Spread spectrum pulse width modulation method and apparatus' [patent_app_type] => utility [patent_app_number] => 12/338279 [patent_app_country] => US [patent_app_date] => 2008-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5220 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/777/07777563.pdf [firstpage_image] =>[orig_patent_app_number] => 12338279 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/338279
Spread spectrum pulse width modulation method and apparatus Dec 17, 2008 Issued
Array ( [id] => 63944 [patent_doc_number] => 07764122 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2010-07-27 [patent_title] => 'Dual stage source/sink amplifier circuit with quiescent current determination' [patent_app_type] => utility [patent_app_number] => 12/337955 [patent_app_country] => US [patent_app_date] => 2008-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 26 [patent_no_of_words] => 13645 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/764/07764122.pdf [firstpage_image] =>[orig_patent_app_number] => 12337955 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/337955
Dual stage source/sink amplifier circuit with quiescent current determination Dec 17, 2008 Issued
Array ( [id] => 4645151 [patent_doc_number] => 08022760 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-09-20 [patent_title] => '3-way Doherty amplifier with minimum output network' [patent_app_type] => utility [patent_app_number] => 12/809757 [patent_app_country] => US [patent_app_date] => 2008-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4280 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 336 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/022/08022760.pdf [firstpage_image] =>[orig_patent_app_number] => 12809757 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/809757
3-way Doherty amplifier with minimum output network Dec 17, 2008 Issued
Array ( [id] => 6420004 [patent_doc_number] => 20100277236 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-11-04 [patent_title] => 'PREDISTORTER' [patent_app_type] => utility [patent_app_number] => 12/746363 [patent_app_country] => US [patent_app_date] => 2008-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6920 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0277/20100277236.pdf [firstpage_image] =>[orig_patent_app_number] => 12746363 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/746363
Predistorter Dec 16, 2008 Issued
Array ( [id] => 5440628 [patent_doc_number] => 20090092267 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-09 [patent_title] => 'SWITCHING AUDIO POWER AMPLIFIER WITH DE-NOISE FUNCTION' [patent_app_type] => utility [patent_app_number] => 12/334549 [patent_app_country] => US [patent_app_date] => 2008-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 5587 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0092/20090092267.pdf [firstpage_image] =>[orig_patent_app_number] => 12334549 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/334549
Switching audio power amplifier with de-noise function Dec 14, 2008 Issued
Array ( [id] => 93613 [patent_doc_number] => 07733177 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2010-06-08 [patent_title] => 'Method and system for calculating the pre-inverse of a nonlinear system' [patent_app_type] => utility [patent_app_number] => 12/333061 [patent_app_country] => US [patent_app_date] => 2008-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2921 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/733/07733177.pdf [firstpage_image] =>[orig_patent_app_number] => 12333061 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/333061
Method and system for calculating the pre-inverse of a nonlinear system Dec 10, 2008 Issued
Array ( [id] => 84990 [patent_doc_number] => 07741914 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2010-06-22 [patent_title] => 'Amplifier system with dynamically-adjusted supply voltage' [patent_app_type] => utility [patent_app_number] => 12/331977 [patent_app_country] => US [patent_app_date] => 2008-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 4371 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/741/07741914.pdf [firstpage_image] =>[orig_patent_app_number] => 12331977 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/331977
Amplifier system with dynamically-adjusted supply voltage Dec 9, 2008 Issued
Array ( [id] => 5341055 [patent_doc_number] => 20090179705 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-07-16 [patent_title] => 'IMPEDANCE-MAPPING AMPLIFIER CIRCUIT WITH EXCLUSIVELY REACTIVE NEGATIVE FEEDBACK' [patent_app_type] => utility [patent_app_number] => 12/331512 [patent_app_country] => US [patent_app_date] => 2008-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2731 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0179/20090179705.pdf [firstpage_image] =>[orig_patent_app_number] => 12331512 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/331512
Impedance-mapping amplifier circuit with exclusively reactive negative feedback Dec 9, 2008 Issued
Array ( [id] => 4518968 [patent_doc_number] => 07911271 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2011-03-22 [patent_title] => 'Hybrid broadband power amplifier with capacitor matching network' [patent_app_type] => utility [patent_app_number] => 12/332317 [patent_app_country] => US [patent_app_date] => 2008-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1673 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/911/07911271.pdf [firstpage_image] =>[orig_patent_app_number] => 12332317 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/332317
Hybrid broadband power amplifier with capacitor matching network Dec 9, 2008 Issued
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