Communication device with operation mode selection according to its position in relation to an independent reference system
First Claim
1. A communication device comprising:
- an electro-acoustic converter;
a microphone; and
a sensor for determining the device position in relation to an independent system, wherein the communication device at positions that correspond to a predetermined position set is operated in a first mode to provide acoustic signals which can only be understood by a first person who is located in immediate vicinity to said converter, wherein said predetermined position set corresponds to the angle of plumb at which said communication device is being held by said first person who brings said microphone to the mouth and said converter to the ear, and wherein the communication device at positions that do not correspond to said predetermined position set is operated in a second mode.
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Accused Products
Abstract
In a communication device (100) with an earpiece (110) and a microphone (120), there is a sensor (130) relating a first connection line (105) from the earpiece (110) to the microphone (120) on a system (200, 300) which is independent of the device and of the person using it, such as the earth'"'"'s gravitational field, and which selects the operating mode QUIET (1) or LOUD (2) of the communication device in accordance with this. The sensor (130) switches the communication device (100) to QUIET when the angle (230) between the connecting line (105) and the plumbline (205) of the gravitational field basically corresponds to the angle (330) between a second connecting line between the ear (310) and the mouth (320) of a person (300) who is authorized to make the call, so as to bar other persons (400) who are in the vicinity (X2) from hearing the output from the communication device loudspeaker (110).
10 Citations
18 Claims
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1. A communication device comprising:
-
an electro-acoustic converter;
a microphone; and
a sensor for determining the device position in relation to an independent system, wherein the communication device at positions that correspond to a predetermined position set is operated in a first mode to provide acoustic signals which can only be understood by a first person who is located in immediate vicinity to said converter, wherein said predetermined position set corresponds to the angle of plumb at which said communication device is being held by said first person who brings said microphone to the mouth and said converter to the ear, and wherein the communication device at positions that do not correspond to said predetermined position set is operated in a second mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
(i) in said first mode, said converter transmits information at such a sound level that said information reaches said first person at a sound level which is at or above the hearing threshold and can only reach said second person at a sound level which is below the hearing threshold, and (ii) in said second mode said converter transmits said information at such a sound level that said information reaches said first person at a sound level which is at or above the hearing threshold and which can also reach said second person at a sound level which is at or above the hearing threshold, wherein said sensor switches said communication device into said first mode when said communication device is in a position relative to a reference system that is independent from said communication device, which corresponds to a situation, as if said first person would hold said communication device to the ear, and switch over to said second mode otherwise.
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- 10. A radio with an earpiece in the operating modes LOUD and QUIET, as well as a microphone, comprising a location sensor which determines which of the two operating modes to operate in, based on an angle from a connecting line between said earpiece and said microphone to the earth gravitational field gradient.
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13. A device with a converter, said converter generating an acoustic information signal with sound level (PW), said device further comprising a plumbline sensor coupled with said converter for determining the angle of plumb α
- of said device to the gravitational field, comprising;
the air attenuation factor (DA) over the distance between said converter and a person A, said person A holding the converter, the air attenuation factor (DB) over the distance between the converter and a person B, located at a predetermined minimum distance from person A, the hearing threshold of person A (PSA), the hearing threshold of person B (PSB), and the predetermined angle {β
} set with reference to the gravitational field, wherein;
for case 1, α
ε
{β
};
PW/DA≦
PSA and PW*DB<
PSB, andfor case 2, α
∉
{β
};
PW/DA≦
PSA and PW*DB≦
PSB.- View Dependent Claims (14, 15)
- of said device to the gravitational field, comprising;
- 16. A portable communication device with which a first person perceives information provided by a first converter by an acoustic signal, wherein the signal, when operating in a first operating mode (1), can only be understood by said first person and not by a second person at a predetermined minimum distance from said first person, and wherein in a second operating mode (2), said signal can be understood by both said first person and said second person, said device being characterized by a sensor which analyses at least one coordinate of the spatial extension of said device in relation to a reference system which is independent of both said device and said person using it and which selects the coordinates according to the operating mode (1,2) of said device.
Specification