DE102017104661A1 - Device for optimizing speech recognition in a motor vehicle - Google Patents

Abstract

The invention relates to a device for optimizing speech recognition in a motor vehicle with a housing (1) and a display (2), each with a circular cross section, characterized in that the housing (1) has a rear housing part (3) and a ring (4 ) with openings (5) in its front region (4a), wherein within the ring (4) the display (2) and a printed circuit board (6) with microphones (7) is arranged.

Description

The invention relates to a device for optimizing speech recognition in a motor vehicle and for assisting the driver of a motor vehicle and is applicable for use in motor vehicles in the form of a retrofittable additional device which can be arranged in the field of vision of the driver.

Such devices are known, for example, as navigation devices in a variety of versions.

The invention has for its object to provide a device for optimizing the speech recognition in a motor vehicle, which is simple and inexpensive to produce and easy to assemble and in which the housing ensures a secure cohesion of all device components.

This object is achieved by the features in claim 1. Advantageous embodiments of the invention are contained in the subclaims.

A particular advantage of the invention is that the device has a compact construction and is to be mounted effectively by the device having a rear housing part and a ring associated therewith with openings in its front area, wherein arranged within the ring, the display and a printed circuit board with microphones is.

Due to the relatively small dimensions of the device and the shape with a circular cross-section, the structure of the housing is more complicated than, for example, rectangular devices.

According to the invention, the device has a three-part structure in principle of the overall housing with a central ring as a base. The back of the ring is followed by a rear housing part and forward of the circular display is arranged. A printed circuit board is mounted inside the ring behind the display and in front of the rear housing part. Thus, a very stable, shapely and cost-effectively manufactured housing is achieved with the principle of three-part construction of the overall housing.

For devices with a circular cross-section and with a likewise circular display, the space for attaching microphones, which are aligned to the speaker or driver, is limited.

According to the invention, the display is now mounted with a circular cross section in the ring, and just below the display, a joint is incorporated in the front region of the ring, which runs around the display. In turn, invisible openings for the user or driver are incorporated into this joint, which channels the sound back towards the microphones. The microphones are preferably arranged vis-a-vis the openings on the printed circuit board arranged behind the ring. The openings form sound channels through which the sound reaches the microphones.

• 1 eine Schnittdarstellung des prinzipiellen Aufbaus des Gerätes
• 2 eine Detailansicht der Anordnung der Öffnungen und Mikrofone
• 3 eine Vorderansicht auf das Gerät mit den Öffnungen im Ring

The invention will be explained in more detail below with reference to embodiments shown at least partially in the figures. Show it:

• 1 a sectional view of the basic structure of the device
• 2 a detailed view of the arrangement of the openings and microphones
• 3 a front view of the device with the openings in the ring

How out 1 can be seen, the housing has 1 a rear housing part 3 , a ring 4 and one in the ring 4 arranged display 2 and a circuit board 6 on. As you can see, the ring forms 4 a central component of the overall housing design. The ring 4 realizes the connection to the rear housing part 3 and takes in its interior the circuit board 6 and the display 5 on.

2 shows the enlarged detail view of the opening 5 and a microphone 7 which of the opening 5 , connected by the sound channel 5a , is opposite.

In the front area 4a of the ring 4 is a fugue 8th arranged, in which, for the viewer almost invisible, the openings 5 are located. The sound passes over the openings 5 in the fugue 8th over the sound channel 5a to the trained in the present embodiment as a directional microphone 7 ,

3 now shows a front view on the display 2 as well as the ring 4 , The ring 4 points in its front area 4a the joint 8th on, in which the openings 5 are arranged. In the present embodiment, a total of four openings 5 arranged which the microphones 7 are positioned opposite one another.

LIST OF REFERENCE NUMBERS

1

casing

2

display

3

Rear housing part

4

ring

4a

front area

5

openings

5a

audio channels

6

circuit board

7

microphone

8th

Gap

Claims (6)

Device for optimizing speech recognition in a motor vehicle with a housing (1) and a display (2), each with a circular cross-section, characterized in that the housing (1) has a rear housing part (3) and an associated ring (4) with openings ( 5) in its front region (4a), wherein within the ring (4) the display (2) and a printed circuit board (6) with microphones (7) is arranged. Device after Claim 1 , characterized in that the openings (5) in a joint (8) in the front region (4a) of the ring (4) are arranged. Device according to one of the preceding claims, characterized in that the microphones (7) opposite the sound channels (5a) forming openings (5) are arranged. Device according to one of the preceding claims, characterized in that a total of four microphones (7) and four openings (5) are arranged. Device according to one of the preceding claims, characterized in that the ring (4) made of metal and the rear housing part (3) is formed of plastic. Device according to one of the preceding claims, characterized in that the microphones (7) are directional microphones.

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