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US 6,687,187 B2Granted
Method for directional location and locating system
AssigneePhonak AG
InventorHans-Ueli Roeck
Life of this patent
Estimating the term…
Abstract
In order to locate electromagnetic or acoustic signal sources of a sensor configuration (1a through 1c) fitted with at least two electric outputs, where the incidence-dependent transfer functions between the acoustic signals incident on the input(s) of the sensor configuration (1a through 1c) and the electric output signals are different, the ratio (7x through 7xx) of the output signal is formed and the result then is correlated with the previously determined ratio function (11).
Claims22
A method of controlling the directional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of an acoustical source with respect to the hearing device;
- controlling the directional characteristic of the hearing device as a function of the directional orientation detected;
- providing a sensor configuration which has at least two electric outputs, said sensor configuration having transfer functions between an input on which acoustic signals impinge and said at least two outputs to generate electric signals on the outputs that are differently dependent on the directional orientation with which said acoustic signal impinges on said input and further defining a predetermined course of a ratio of said electric signals generated at two of said at least two outputs in dependency of said directional orientation;
- monitoring a ratio of momentarily prevailing electric signals at said two outputs and determining the directional orientation which includes correlating said monitored ratio of momentarily prevailing electric signals with said predetermined course of said ratio;
- and
- tailoring said transfer functions to be substantially of equal shape but phase-shifted by a predetermined spatial angle.
3 more elements
A method of controlling the receptional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of an acoustical source;
- and
- introducing an increased attenuation for acoustical signals received from the detected directional orientation.
A method of controlling the receptional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of an acoustical source;
- introducing an increased attenuation for acoustical signals received from the detected directional orientation;
- providing a sensor configuration which has at least two electric outputs, said sensor configuration having transfer functions between an input on which acoustic signals impinge and said at least two outputs to generate electric signals on the outputs that are differently dependent on the directional orientation with which said acoustic signal impinges on said input and further defining a predetermined course of a ratio of said electric signals generated at two of said at least two outputs in dependency of said directional orientation;
- and
- monitoring a ratio of momentarily prevailing electric signals at said two outputs and determining the directional orientation which includes correlating said monitored ratio of momentarily prevailing electric signals with said predetermined course of said ratio.
2 more elements
A method of controlling the receptional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of an acoustical source;
- introducing an increased attenuation for acoustical signals received from the detected directional orientation;
- providing a sensor configuration which has at least two electric outputs, said sensor configuration having transfer functions between an input on which acoustic signals impinge and said at least two outputs to generate electric signals on the outputs that are differently dependent on the directional orientation with which said acoustic signal impinges on said input and further defining a predetermined course of a ratio of said electric signals generated at two of said at least two outputs in dependency of said directional orientation;
- monitoring a ratio of momentarily prevailing electric signals at said two outputs and determining the directional orientation which includes correlating said monitored ratio of momentarily prevailing electric signals with said predetermined course of said ratio;
- and
- providing at least twice said two electric outputs from at least two pairs of at least three of said electric outputs, thereby reducing an ambiguity of said detected directional orientation.
3 more elements
A method of controlling the receptional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of an acoustical source;
- and
- introducing an increased attenuation for acoustical signals received from the detected directional orientation, wherein
- the detecting step includes the step of generating a histogram of directional orientation.
1 more element
A method of controlling the receptional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of an acoustical source;
- introducing an increased attenuation for acoustical signals received from the detected directional orientation;
- providing a sensor configuration which has at least two electric outputs, said sensor configuration having transfer functions between an input on which acoustic signals impinge and said at least two outputs to generate electric signals on the outputs that are differently dependent on the directional orientation with which said acoustic signal impinges on said input and further defining a predetermined course of a ratio of said electric signals generated at two of said at least two outputs in dependency of said directional orientation;
- monitoring a ratio of momentarily prevailing electric signals at said two outputs and determining the directional orientation which includes correlating said monitored ratio of momentarily prevailing electric signals with said predetermined course of said ratio;
- and
- monitoring said ratio repetitively and forming a histogram from a signal which is dependent on said ratio as monitored repetitively, wherein
- said determining is performed as a function of said histogram.
4 more elements
A method of controlling the receptional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of multiple acoustical sources;
- and
- introducing an increased attenuation for acoustical signals received from the detected directional orientation;
- tailoring said transfer functions to be substantially of equal shape but phase-shifted by a predetermined spatial angle.
1 more element
A method of controlling the receptional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of an acoustical source;
- introducing an increased attenuation for acoustical signals received from the detected directional orientation;
- providing a sensor configuration which has at least two electric outputs, said sensor configuration having transfer functions between an input on which acoustic signals impinge and said at least two outputs to generate electric signals on the outputs that are differently dependent on the directional orientation with which said acoustic signal impinges on said input and further defining a predetermined course of a ratio of said electric signals generated at two of said at least two outputs in dependency of said directional orientation;
- monitoring a ratio of momentarily prevailing electric signals at said two outputs and determining the directional orientation which includes correlating said monitored ratio of momentarily prevailing electric signals with said predetermined course of said ratio;
- and
- tailoring said transfer functions to be substantially of equal shape but phase-shifted by a predetermined spatial angle.
3 more elements
A method of controlling the directional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of an acoustical source with respect to the hearing device;
- controlling the directional characteristic of the hearing device as a function of the directional orientation detected;
- providing a sensor configuration which has at least two electric outputs, said sensor configuration having transfer functions between an input on which acoustic signals impinge and said at least two outputs to generate electric signals on the outputs that are differently dependent on the directional orientation with which said acoustic signal impinges on said input and further defining a predetermined course of a ratio of said electric signals generated at two of said at least two outputs in dependency of said directional orientation;
- and
- monitoring a ratio of momentarily prevailing electric signals at said two outputs and determining the directional orientation which includes correlating said monitored ratio of momentarily prevailing electric signals with said predetermined course of said ratio.
2 more elements
A method of controlling the directional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of an acoustical source with respect to the hearing device;
- and
- controlling the directional characteristic of the hearing device as a function of the directional orientation detected, wherein
- the detecting step includes the step of generating a histogram of directional orientation.
1 more element
A method of controlling the directional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of an acoustical source with respect to the hearing device;
- controlling the directional characteristic of the hearing device as a function of the directional orientation detected;
- providing a sensor configuration which has at least two electric outputs, said sensor configuration having transfer functions between an input on which acoustic signals impinge and said at least two outputs to generate electric signals on the outputs that are differently dependent on the directional orientation with which said acoustic signal impinges on said input and further defining a predetermined course of a ratio of said electric signals generated at two of said at least two outputs in dependency of said directional orientation;
- monitoring a ratio of momentarily prevailing electric signals at said two outputs and determining the directional orientation which includes correlating said monitored ratio of momentarily prevailing electric signals with said predetermined course of said ratio;
- and
- monitoring said ratio repetitively and forming a histogram from a signal which is dependent on said ratio as monitored repetitively, and wherein said determining is performed as a function of said histogram.
3 more elements
A method of controlling the directional characteristic of a hearing device comprising the steps of:
- detecting directional orientation of multiple acoustical sources with respect to the hearing device;
- and
- controlling the directional characteristic of the hearing device as a function of the directional orientation detected.
Dependencies are inferred from the claim text.