![]() ![]() audio preamplifiers with semiconductor devices only H03F3/183- Low frequency amplifiers, e.g.H03F3/181- Low frequency amplifiers, e.g.H03F3/00- Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements.Assignors: VXI CORPORATION Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Assigned to GN AUDIO A/S reassignment GN AUDIO A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assigned to VXI CORPORATION reassignment VXI CORPORATION RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: NEW HAMPSHIRE COMMUNITY LOAN FUND, INC. Assignors: SALEM FIVE CENTS SAVINGS BANK Assigned to VXI CORPORATION reassignment VXI CORPORATION RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). SECURITY AGREEMENT Assignors: VXI CORPORATION Assigned to VXI CORPORATION reassignment VXI CORPORATION RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: SALEM FIVE CENTS SAVINGS BANK Assigned to TD BANK, N.A. SECURITY AGREEMENT Assignors: VXI CORPORATION Assigned to SALEM FIVE CENTS SAVINGS BANK reassignment SALEM FIVE CENTS SAVINGS BANK SECURITY AGREEMENT Assignors: VXI CORPORATION Assigned to VXI CORPORATION reassignment VXI CORPORATION RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). reassignment NEW HAMPSHIRE COMMUNITY LOAN FUND, INC. Priority to US09/335,789 priority patent/US6580797B1/en Application granted granted Critical Publication of US6504937B1 publication Critical patent/US6504937B1/en Assigned to SALEM FIVE CENTS SAVINGS BANK reassignment SALEM FIVE CENTS SAVINGS BANK SECURITY AGREEMENT Assignors: VXI CORPORATION Assigned to NEW HAMPSHIRE COMMUNITY LOAN FUND, INC. Assignors: PAPADOPOULOS, COSTAS, TRUESDELL, DAVID J. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by VXI Corp filed Critical VXI Corp Priority to US09/115,980 priority Critical patent/US6504937B1/en Assigned to VXI CORPORATION reassignment VXI CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Original Assignee VXI Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ![]() Truesdell Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US09/115,980 Inventor Costas Papadopoulos David J. ![]() Google Patents Amplifier circuit for electret microphone with enhanced performanceÄownload PDF Info Publication number US6504937B1 US6504937B1 US09/115,980 US11598098A US6504937B1 US 6504937 B1 US6504937 B1 US 6504937B1 US 11598098 A US11598098 A US 11598098A US 6504937 B1 US6504937 B1 US 6504937B1 Authority US United States Prior art keywords circuit audio current microphone coupled Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US6504937B1 - Amplifier circuit for electret microphone with enhanced performance US6504937B1 - Amplifier circuit for electret microphone with enhanced performance ![]()
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