IP Library Granted Patent US 7,421,084
Granted Patent B2
US 7,421,084 · App. 11/329,838 · Granted Sep 2, 2008

Digital interface for analog audio mixers

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Quick Facts
Patent No.
US 7,421,084
App. No.
11/329,838
Granted
Sep 2, 2008
Kind
B2
Abstract

An analog-digital interface device is provided, which is configured to be housed within or removably coupled with an analog mixer, to thereby form a digital-output analog mixer. The analog-digital interface device includes analog-digital conversion circuitry and digital transmission circuitry that convert analog audio from the analog mixer to digital format for transmission along a digital transport interface to an external digital computing device, such as a PC or MAC computer. In one embodiment, the analog audio can be tapped from any one or more points along a signal path of the analog mixer and sent to the analog-digital interface device. In another embodiment, the analog-digital interface device is further configured to receive digital signals back from the external digital computing device, convert them to analog signals, and return them to the analog mixer at any one or more points along a signal path of the analog mixer.

Claims (12)

1. An analog audio mixing system with digital interface, comprising:

an analog mixer including at least one signal path comprising a channel strip and a bus section;

an analog-digital interface device coupled with the analog mixer, the analog-digital interface device comprising analog-digital conversion circuitry and digital transmission circuitry that convert analog audio to digital format for transmission along a digital transport interface to an external digital computing device; and

a user interface control that permits a user to select one or more points along the signal path of the analog mixer from which analog signals can be tapped and sent to the analog-digital interface device, wherein the analog-digital interface device is configured to tap analog audio from several points along a signal path of the analog mixer, wherein at each of said points an analog audio signal may be tapped at a different stage of processing so that the tapped analog audio signal is further converted to digital format by the analog-digital interface device for transmission to the external digital computing device to digitally process the converted signal.

2. An analog audio mixing system with digital interface, comprising:

an analog mixer including at least one signal path comprising a channel strip and a bus section;

an analog-digital interface device coupled with the analog mixer, the analog-digital interface device comprising analog-digital conversion circuitry and digital transmission circuitry that convert analog audio to digital format for transmission along a digital transport interface to an external digital computing device; and

a user interface control that permits a user to select one or more points along the signal path of the analog mixer from which analog signals can be tapped and sent to the analog-digital interface device, wherein the analog-digital interface device is configured to return analog signals to several points along a signal path of the analog mixer, wherein the analog signals have been returned after having been digitally processed by the digital computing device and converted from digital format to analog format by the analog-digital interface device.

3. An analog-digital interface device that is configured to be housed within an analog mixer, the analog-digital interface device comprising:

analog-digital conversion circuitry and digital transmission circuitry that convert analog audio from the analog mixer to digital format for transmission along a digital transport interface to an external digital computing device, which is further configured to tap analog audio from several points along a signal path of the analog mixer, wherein at each of said points an analog audio signal may be tapped at a different stage of processing so that the tapped analog audio signal is further converted to digital format by the analog-digital interface device for transmission to the external digital computing device to digitally process the converted signal.

4. An analog-digital interface device that is configured to be housed within an analog mixer, the analog-digital interface device comprising:

analog-digital conversion circuitry and digital transmission circuitry that convert analog audio from the analog mixer to digital format for transmission along a digital transport interface to an external digital computing device, which is further configured to return analog signals at several points along a signal path of the analog mixer, wherein the analog signals have been returned after having been digitally processed by the digital computing device and converted from digital format to analog format by the analog-digital interface device.

Assignments (13)
RELEASE OF SECURITY INTEREST IN PATENTS Recorded Jan 4, 2018
From: ABELCO FINANCE LLC
To: LOUD TECHNOLOGIES, INC.; MACKIE DESIGNS INC.; SIA SOFTWARE COMPANY, INC.; SLM HOLDING CORP.; ST. LOUIS MUSIC, INC.; MARTIN AUDIO HOLDINGS LIMITED F/K/A GRACE ACQUISITIONCO LIMITED
Reel/Frame 045002/0833 →
RELEASE OF SECURITY INTEREST AT REEL/FRAME 019102/0017 & 033070/0215 Recorded Oct 13, 2017
From: ABLECO FINANCE LLC
To: LOUD TECHNOLOGIES, INC.; MACKIE DESIGNS INC.; ST. LOUIS MUSIC, INC.; MARTIN AUDIO HOLDINGS LIMITED
Reel/Frame 044263/0773 →
RELEASE OF SECURITY INTEREST Recorded Oct 12, 2017
From: SUN MACKIE, LLC
To: LOUD TECHNOLOGIES, INC.; MACKIE DESIGNS INC.; SIA SOFTWARE COMPANY, INC.; ST. LOUIS MUSIC, INC.
Reel/Frame 044257/0375 →
RELEASE OF SECURITY INTEREST Recorded Oct 12, 2017
From: SUN MACKIE, LLC
To: LOUD TECHNOLOGIES, INC.; MARTIN AUDIO LIMITED
Reel/Frame 043855/0023 →
RELEASE OF SECURITY INTEREST Recorded Oct 12, 2017
From: SUN MACKIE FINANCE, LLC
To: LOUD TECHNOLOGIES, INC.; MACKIE DESIGNS INC.; ST. LOUIS MUSIC, INC.
Reel/Frame 043855/0102 →
RELEASE OF SECURITY INTEREST Recorded Oct 12, 2017
From: SUN MACKIE FINANCE, LLC
To: LOUD TECHNOLOGIES, INC.; MARTIN AUDIO LIMITED
Reel/Frame 043855/0132 →
SUPPLEMENTAL PATENT SECURITY AGREEMENT Recorded Jun 19, 2014
From: LOUD TECHNOLOGIES INC.; MARTIN AUDIO LIMITED
To: SUN MACKIE, LLC
Reel/Frame 033205/0504 →
SUPPLEMENTAL PATENT SECURITY AGREEMENT Recorded Jun 19, 2014
From: LOUD TECHNOLOGIES INC.; MARTIN AUDIO LIMITED
To: SUN MACKIE FINANCE, LLC
Reel/Frame 033215/0680 →
SUPPLEMENTAL PATENT SECURITY AGREEMENT Recorded May 30, 2014
From: LOUD TECHNOLOGIES INC.; MARTIN AUDIO HOLDINGS LIMITED F/K/A GRACE ACQUISITIONCO LIMITED)
To: ABLECO FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 033070/0215 →
SECURITY AGREEMENT Recorded Oct 30, 2009
From: LOUD TECHNOLOGIES INC.; MACKIE DESIGNS INC.; ST. LOUIS MUSIC, INC.
To: SUN MACKIE FINANCE, LLC
Reel/Frame 023438/0984 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2008
From: JUBIEN, CHRISTOPHER MICHAEL; KAPPERS, ANDREAS TEUNIS MARTINUS; OLSWANG, BENJAMIN SETH; STEINBERG, DANIEL MARTIN
To: LOUD TECHNOLOGIES INC.
Reel/Frame 021134/0991 →
PATET SECURITY AGREEMENT Recorded Apr 3, 2008
From: LOUD TECHNOLOGIES INC.; MACKIE DESIGN INC.; SIA SOFTWARE COMPANY, INC.; ST. LOUIS MUSIC, INC.
To: SUN MACKIE LLC
Reel/Frame 020753/0350 →
PATENT SECURITY AGREEMENT Recorded Apr 2, 2007
From: LOUD TECHNOLOGIES INC., A WASHINGTON CORPORATION; MACKIE DESIGNS INC., A WASHINGTON CORPORATION; SIA SOFTWARE COMPANY, INC., A NEW YORK CORPORATION; SLM HOLDING CORP., A DELAWARE CORPORATION; ST. LOUIS MUSIC, INC., A MISSOURI CORPORATION
To: ABLECO FINANCE LLC, A DELAWARE LIMITED LIABILITY COMPANY, AS AGENT
Reel/Frame 019102/0017 →