Title of Invention

METHOD FOR THE REMOTE CONTROL OF A MICROPHONE

Abstract The invention relates to a method for the remote control of a microphone, which comprises at least one microphone capsule (9), and at least one additional power receiver, selected from the group of audio amplifiers (10), power supply circuits (11), processors, control electronics (39), A/D and D/A converters (44, 46), LED displays (25), etc., and whose energy supply occurs by a phantom power unit (31) through the cable conductors (1, 2) of the audio cable, the so-called phantom power supply. The invention is characterized in that a frequency-modulated voltage is applied as a control signal to at least one of the two cable conductors (1, 2) through which the phantom power supply also occurs, and in that the frequency-modulated voltage, on the microphone side, is applied to a control electronics (39), for example a microcontroller or a CPLD, which sends commands to individual power receivers according to the frequency-modulated control signals.
Full Text


We claim:
1. Method for the remote control of a microphone, which comprises at least one microphone capsule (9), and at least one additional power receiver, selected from the group of audio amplifiers (10), power supply circuits (11), processors, control electronics (39), A/D and D/A converters (44, 46), LED displays (25), etc., and whose energy supply occurs by a phantom power unit (31) through the cable conductors (1, 2) of the audio cable, the so-called phantom power supply, characterized in that a frequency-modulated voltage is applied as a control signal to at least one of the two cable conductors (1, 2) through which the phantom power supply also occurs, and in that the frequency-modulated voltage, on the microphone side, is applied to a control electronics (39), for example a microcontroller or a CPLD, which sends commands to individual power receivers according to the frequency-modulated control signals.
2. Method as claimed in claim 1, wherein the carrier frequencies for the control signal are approximately 100 kHz.
3. Method as claimed in one of claims 1-2, wherein the audio signal is transmitted through the cable conductor (1) and the frequency-modulated voltage is fed into the cable conductor (2).
4. Method as claimed in one of claims 1-2, wherein the frequency-modulated voltage is applied at the same level to both cable conductors (1, 2) as a common mode signal.
5. Method as claimed in claim 4, wherein the frequency-modulated voltage is separated from the audio signal by an input-difference amplifier (42).
6. Method as claimed in one of claims 1-5 wherein the frequency-modulated voltage is separated from the audio signal by a low-pass filter (41).
7. Method as claimed in one of claims 1-6, wherein, in response to a control signal from the remote control unit (55) to the microphone (54), a data-acknowledge message is sent to the remote control unit.
8. Method for the remote control as claimed in claim 7, wherein the data-acknowledge message is also a frequency-modulated signal.

Documents:

537-DEL-2005-Abstract-(07-02-2012).pdf

537-DEL-2005-Abstract-(07-03-2013).pdf

537-DEL-2005-Claims-(07-02-2012).pdf

537-del-2005-Correspondence Others-(04-04-2012).pdf

537-DEL-2005-Correspondence Others-(07-02-2012).pdf

537-DEL-2005-Correspondence Others-(07-03-2013).pdf

537-del-2005-Correspondence Others-(09-04-2012).pdf

537-DEL-2005-Form-2-(07-03-2013).pdf

537-DEL-2005-Form-3-(07-02-2012).pdf

537-DEL-2005-GPA-(07-03-2013).pdf

537-del-2005-GPA-(09-04-2012).pdf

537-del-2005-Petition-137-(04-04-2012).pdf


Patent Number 255622
Indian Patent Application Number 537/DEL/2005
PG Journal Number 11/2013
Publication Date 15-Mar-2013
Grant Date 11-Mar-2013
Date of Filing 11-Mar-2005
Name of Patentee AKG ACOUSTICS GMBH
Applicant Address LEMBOCKGASSE 21-25, A-1230 WIEN, AUSTRIA
Inventors:
# Inventor's Name Inventor's Address
1 SEKNICKA, OTTO NEUFELDWEG 3A, A-2560 BERNDORF, AUSTRIA
PCT International Classification Number G08C 23/02
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 04450074.2 2004-03-30 EPO