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Document EP000000642290A2 (Pages: 9)

Bibliographic data Document EP000000642290A2 (Pages: 9)
INID Criterion Field Contents
54 Title TI [DE] Mobilfunkgerät mit einer Sprachverarbeitungseinrichtung.
[EN] Mobile communication apparatus with speech processing device.
[FR] Appareil de communication mobile avec dispositif pour le traitement de la parole.
71/73 Applicant/owner PA PHILIPS ELECTRONICS NV, NL ; PHILIPS PATENTVERWALTUNG, DE
72 Inventor IN KELLERMANN WALTER PROF DR ING, DE
22/96 Application date AD Sep 2, 1994
21 Application number AN 94202513
Country of application AC EP
Publication date PUB Mar 8, 1995
33
31
32
Priority data PRC
PRN
PRD
DE
4330243
19930907
51 IPC main class ICM H04R 3/00
51 IPC secondary class ICS H04R 1/40
IPC additional class ICA
IPC index class ICI
Cooperative patent classification CPC H04R 1/406
H04R 2430/23
H04R 3/005
MCD main class MCM G10L 15/20 (2006.01)
MCD secondary class MCS G10L 21/0208 (2013.01)
H04B 7/26 (2006.01)
H04R 1/40 (2006.01)
H04R 3/00 (2006.01)
MCD additional class MCA
57 Abstract AB [DE] Die Erfindung bezieht auf ein Mobilfunkgerät mit mindestens zwei Mikrophonen (M1, ...,MN). Diese dienen zur Lieferung von aus Sprach- und Störsignalanteilen (s1, ..., sN, n1, ..., nN) bestehenden Mikrophonsignalen (x1, ..., xN) an Mikrophonsignalzweige, die mit den Eingängen einer zur Bildung eines Summensignals (x) dienenden Addiervorrichtung (5) gekoppelt sind. Es wird vorgeschlagen, in den Mikrophonsignalzweigen Mittel (3) zur Gewichtung der Mikrophonsignale (x1, ..., xN) mit auf einfache Weise zu berechnenden Gewichtsfaktoren (c1, ..., cN) vorzusehen, um das Signal/Rausch-Verhältnis (SNR) des Summensignals (x) zu erhöhen. Die Sprachverarbeitungsvorrichtung wird vorzugsweise in eine Freisprecheinrichtung des Mobilfunkgeräts integriert. <IMAGE>
[EN] The invention relates to a mobile radio unit having at least two microphones (M1, ...,MN). These are used for supplying microphone signals (x1, ..., xN), consisting of voice and noise signal components (s1, ..., sN, n1, ..., nN) to microphone signal branches which are connected to the inputs of an adding device (5) used for forming an aggregate signal (x). It is proposed to provide in the microphone signal branches means (3) for weighting the microphone signals (x1, ..., xN) with weighting factors (c1, ..., cN), to be calculated in a simple manner, in order to increase the signal/noise ratio (SNR) of the aggregate signal (x). The voice processing device is preferably integrated into a hands-free talking facility of the mobile radio unit. <IMAGE>
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