close

Вход

Забыли?

вход по аккаунту

?

JPH0340615

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPH0340615
[0001]
FIELD OF THE INVENTION This invention relates to the spatial transmission of audio signals and
the like. 2. Related Art In recent years, acoustic devices that spatially transmit audio signals as
optical signals or radio wave signals have emerged, and cordlessness is in progress. However,
even if it is cordless, at present, only between the transmitting unit and the receiving unit (signal
transmission path) is cordless, and the earphone speaker and the earphone speaker driving unit
are connected by a cord. There are also headphone types that are trying to be cordless. The prior
art will be described below. An example of the prior art will be described with reference to FIG.
First, in the transmission unit, the optical audio signal A is converted into an optical signal B by
the optical signal transmission unit 1A, and is sent out to space. Next, in the receiving unit, the
light signal B is converted into the electric signal C by the photoelectric conversion unit 2A, and
then sent to the speaker driving unit 3A. The speaker driver 3A amplifies the electric signal C to
drive the speaker 4A. SUMMARY OF THE INVENTION However, the above-mentioned prior art
configuration requires an electric cable between the speaker drive unit 3A and the speaker 4A or
the earphone speaker (not shown). In addition, in order to operate the photoelectric conversion
unit 2A and the speaker drive unit 3A, the power supply unit (not shown) is also required. The
present invention solves the above-mentioned conventional problems, and an object of the
present invention is to provide an audio signal transmission device which does not require a
power supply unit and an electric cable. Means for Solving the Problems In order to achieve the
object, the present invention is directed to a condensing lens for condensing an optical signal
from space, and the optical signal closely attached to the condensing lens to be an electric signal.
It has a configuration including a photoelectric conversion element to be converted, and an
earphone speaker directly connected to a terminal of the photoelectric conversion element to
convert the electric signal into a sound. Operation With this configuration, the light signal of the
light signal transmission unit is condensed by the condenser lens and is converted to an electric
05-05-2019
1
signal by being supplied to the charge conversion element. By supplying this electric signal
directly to the earphone speaker, it is possible to realize an optical signal receiving unit that does
not require a power supply (electricity / battery) and an electric cord. Embodiment An
embodiment of the present invention will be described with reference to the drawings. The first
figure shows the blocks of a specific embodiment of the present invention. In the first diagram,
reference numeral 1 denotes an optical signal transmission unit, which drives a light emitting
element (not shown) of an electrical audio signal A, converts it into an optical signal B, and sends
it to space. A condenser lens 2 collects an optical signal B transmitted through space.
A photoelectric conversion element 3 converts the strength of the light signal B collected through
the condenser lens 2 into an electric signal C (power and weakness signal). An earphone speaker
4 converts the electric signal C into vibration. The operation of the audio signal transmission
apparatus configured as described above will be described below. First, the operation of the
transmitting side will be described. The audio signal A of the electrical signal input to the optical
signal transmission unit 1 of the present apparatus is a circuit for driving a light emitting
element (not shown) such as an LED. ) Is converted to an optical signal B and sent out to space.
Next, the receiving side will be described. The condenser lens 2 receives the light of the audio
signal A converted into the optical signal B on the transmission side and sent out to space. The
condenser lens 2 operates to efficiently receive the light signal B from an unspecified position in
space. The shape of the condenser lens 2 is not particularly limited, but in general, it is sufficient
that the tip is hemispherical and the subsequent lenses are cylindrical or the like. The light signal
B received by the condenser lens 2 is transmitted to the photoelectric conversion element 3
disposed in a close contact state. The photoelectric conversion element 3 converts the light signal
B condensed by the condensing lens 2 into an electric signal. The photoelectric conversion
element 3 can be realized, for example, by using a photodiode, a photocell, or the like, without
using an external power supply, and by using an element that converts light into an electric
signal. The light signal B converted into the electrical signal supplies and drives the electrical
signal to the earphone speaker 4 directly connected to the terminal of the photoelectric
conversion element 3. The earphone speaker 4 is similar to an earphone such as a normal
television or radio, converts an electric signal into air vibration, vibrates the eardrum, and listens
to a sound. As described above, according to the present embodiment, the optical signal receiving
unit 5 does not require a power source (such as a battery or a DC power source), and does not
require an electric cord for an earphone speaker. Can be parents. In addition, an audio signal
transmission apparatus having a size of about earphones can be realized from power-less,
cordless, and the like. Effect of the Invention As described above, according to the present
invention, the charge conversion element plays the role of a pseudo power supply, whereby it is
possible to realize less power supply (battery or DC power supply). Further, since the condenser
lens and the earphone speaker can be directly connected to the photoelectric conversion
element, it is possible to achieve cordless and compact size.
05-05-2019
2
[0002]
Brief description of the drawings
[0003]
FIG. 1 is a block diagram of an embodiment of the present invention.
FIG. 2 is a block diagram of the prior art. l ...... optical signal transmitter, 2 ...... condenser lens 3
...... photoelectric conversion element, 4 ...... earpiece speaker nono 5 ...... Optical signal receiver.
05-05-2019
3
Документ
Категория
Без категории
Просмотров
0
Размер файла
10 Кб
Теги
jph0340615
1/--страниц
Пожаловаться на содержимое документа