Patent ID: 6549631
Filing Date: 2003-04-15
Classification: H04R

Abstract:
Pressure transducing assembly for converting received pressure into a digital pressure signal, comprisingpressure transmitting means (2), pressure receiving and processing means (3), and pressure signal processing means (4), wherein a) said pressure transmitting means (2) is adapted to receive a first or environmental mechanical pressure (P1) from an environment (5) and to transmit said first pressure (P1) to said pressure receiving and processing means (3), b) said pressure receiving and processing means (3) is adapted to generate a second or internal mechanical pressure (P2) therein in accordance with said received first pressure (P1) and to process said second pressure (P2), c) said pressure receiving and processing means (3) comprises pressure signal generating means (6) being adapted for generating a first or analogue pressure signal (SP2) being representative for said second pressure (P2), d) said pressure receiving and processing means (3) comprises pressure compensating means (7) being adapted for receiving a pressure compensation signal (SDP2) and for generating additional pressure (DP2) within said pressure receiving and processing means (3) so as to compensate said second pressure (P2) at least partially, e) said pressure signal processing means (4) is adapted to receive and process said first analogue pressure signal (SP2), f) said pressure signal processing means (4) has negative-feedback capabilities to generate said analogue pressure compensating signal (SDP2) at least based on said received analogue pressure signal (SP2), and g) said pressure signal processing means (4) is adapted to generate a digital pressure signal (SP2â€²) having an integer number of bits and being representative at least for said internal pressure (P2) and to provide at least said digital pressure signal (SP2â€²) as an output signal.