close

Вход

Забыли?

вход по аккаунту

?

JPS5177322

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 JPS5177322
鴫 vt / r & Ji 1 G-Me. 1.4! II, II, IIq4-a, qtft, @ kt-screw-Co &)-tll-Jta3-J) 1 [phase] Japan
Patent Office ■ JP-A-51-77322. O Published by Nissho 51. (1976), 7, 5 ■ 昭 jρ- / 72ρ-l tf tf 浄
力 浄 浄 (Contents! Two changes! kt)] Name of damage 191 bright name Speaker drive device 3,
a detailed description of the present invention # # sound signal call signal wave can be caused by
the speaker drive device 11 JI, so-generate mechanical vibration The loudspeakers to be
controlled are the control target (4)-the closed loop control system consisting of the analyzation
system (2), the detection system 6) and each amplifier 0) is mwi-said, as shown in FIG. (1) is a
kind of differential amplifier that compares electric signal waves such as company musical tones
etc. with one valve W1 (2) and #i target signal (1) and the signal from the amplifier (6). The
amplifier (3) 11 is a power amplifier that amplifies the deviation signal of the discrimination (2)
and directly drives one control target (4). Control vs. 1! (4) is a pole with a voice coil and a
general loudspeaker chapter meaning one detection (5) The company's device is intended to
detect the voice coil current of a loudspeaker, and it is intended as a pure resistor or A network
equivalent to this is taken. Fig. 2 "shows a specific circuit configuration of the device according to
the present invention-force acting on cone paper of a loudspeaker (F prison-v = s 11; C but where
B-voice is placed) The magnetic flux density of--J: expressed as voice coil length, = voice coil
current), and is considered to be proportional to current (L), and therefore one end of the input
terminal of the loudspeaker (4)- 'A resistor (R) is connected in series, a current value flowing
through the voice coil is detected as a voltage value generated at both ends of the resistor, and a
Δδ value is returned as a discrimination (2) K. In the discrimination (2), using the sex
differential amplifier (2), one target signal (1) and the signal value sent from the detection (5) are
both input, these values. Output as the difference between EndPage: 1̶In the closed loop
control system, the following equation is generally known as a system characteristic. The above
equation is 4+, since AI + p, p (where A-increase, β feedback rate)-′ ′ use very large values. It's
gonna be. That is, it operates to make the difference between two values ヲ 傭 zero in the
discrimination system. Moreover, the characteristics of the entire system are mostly determined
by the feedback system ("detection system"). The present invention is as described above, and
08-05-2019
1
therefore the following effects can be expected.
(1) To reproduce a complex waveform including wide frequency components such as a musical
tone signal faithfully in both width and phase. Udo speaker motional impedance or nominal in?
The problem of dance does not have to be a particular problem in this device. (3) The advanced
characteristics and hum level of the power amplifier, which has been particularly problematic in
the past, do not have to be a problem with this device in principle, so a strong stabilized power
supply etc. is unnecessary. Price reduction is possible. (4) In general, mechanical motion is
always accompanied by inertia, but with this device, it is possible to select the best response
characteristic that matches the characteristics of the loudspeaker by examining the intrinsic
response. . Therefore, improved results can be obtained on the frequency characteristics of
damping as compared with the conventional device. 1 is a block diagram showing a basic
configuration, and FIG. 2 is a circuit diagram showing a specific example. In the drawings, (2) is
discrimination, (3), (6) is an amplifier, (4) is a control target, and (5) is detection. Tube l 寸 now,
44 書 類 documents of @ 銖-(1) Ming h @ /, ((2) @ ino: Jp 33 33, * 1-TK 'l tree / * "EndPage: 2
procedure amendment C Method) Apr. 7, 1975 Show of case Patent No. 001786 No. 2 of 2nd
case, Patent applicants related to the case of the name of invention Patented applicant-(06) 6853905. -4, date of correction instruction March 88, 1959 (shipped on March 25, 1959) 5, object
of correction "Description full text 6 °-content of correction. C) (':', '+, r1 procedure amendment
February, Showa 50) Secretary of War Patent Office 1, display of case Showa 50 patent
application No. ao / ri go' '2, invention title 2, invention Name of speaker driving device 6,
relationship with person making correction Patent applicant address Osaka Prefecture Osaka city
Suminoe-ku Shin Kitajima 2-chome 2-304, correction target statement full text and drawing 5,
correction content sheet / 7 in-light / letter 1, title 1 of the invention, title of the invention 瑚 · · ·
'' speaker drive device-7
Speaker drive device Person who makes correction
3. Detailed description of the invention) Spacing relates to a speaker driving device capable of
generating an air vibration faithful to a target signal wave. Generally, 7J received by the voice
coil of the speaker (F = B1i (where B: B: magnetic flux density of the field where the voice coil is
placed, 1: voice coil length, i: voice coil current), and air vibration Since the first condition of the
speaker design is to be proportional to the force (F) received by the voice coil of the speaker, the
magnitude of air vibration is considered to be proportional to the coil current (i). Therefore, in
order to cause air vibration faithful to the target signal wave, the relation 4 of iac 6 must be
established between the target signal (e ') and the current (i). Since the driving method of the
speaker is as shown in FIG. 3 assuming that the speaker is a resistor, although the relational
expression of ILwe and / Rt is established, the actual speaker has the target signal (e) and the
08-05-2019
2
current ( Since the relationship of 4cIc, 6 is not established, which is not proportional to 1), there
is an example of a defect that air vibration faithful to the target signal wave can not be generated.
SUMMARY OF THE INVENTION The present invention provides a speaker drive device which
eliminates the above-mentioned conventional drawbacks by utilizing the characteristics of a
closed circuit self-voice control system in automatic control. One embodiment of the device of the
present invention will be described with reference to EndPage: 3 in connection with the
drawings. FIG. 1 shows the basic configuration of the device of the present invention (note:
loudspeakers generating mechanical vibration are knees yttsm target (4), A closed circuit control
system consisting of a discriminator (2), a detector (5), and respective amplification circuits (3)
and (6), and the amplifier (3) is a signal obtained by the discriminator (2) The speaker (4) to be
controlled is lily driven by the output of the amplifier (3), and the detector (5) detects the value
of the current flowing through the speaker (4). The detected current value is amplified at the
discrimination level 1, and the discriminator (2) is a negative one which discriminates between
the target signal (1) and the current value amplified to the discrimination level by the amplifier
(6). Next, a specific example of the device according to the present invention will be described
with reference to FIG. 2. A target signal (1) which means an electric signal wave such as a
musical tone passes through the discriminator (2) and then the power amplifier (3). The current
value that is amplified and drives the speaker (4) but flows through the voice coil of the speaker
O) is determined by the pure resistor (R) serially connected to the two ends of the speaker (4).
The flowing current value is generated at both ends of resistance (R)! It is detected as a positive
value, and the current value of j is returned to the discriminator Q) and returned.
と? When the current value amplifier (6) is amplified to the discrimination level, a discriminator
(2) K which is a differential amplifier is applied. In the discriminator (2) 4 as described above,
one target signal (1) and the amplified current value are used as hekers, and the difference
between these values is output, and the difference signal is a power amplifier 6). Amplified to
drive the thrust (-force (4)). Since the device of the present invention operates as described above
q (as it is characteristic of the closed circuit automatic control system, it works with one of the
above discriminators,! In Figure 2, the eye St signal (e.), The value of the current flowing through
the speaker o voice coil (A, the resistance of 1 pure resistor (iK) (8 □)% amplification of the
amplifier (6) (M,) The voltage generated at the end of the pure resistor (g) OWIi * (at) and the
voltage amplified to the discrimination level is (@ S). et = town construction · · 1 = ^ ~ = J, 11. ■
1- ■ Here, in the principle of operation "e □-~ \ Oe plant · 1-," is true, ■, 0 type)) "Xsl! . The
proportional relation is established between the target signal (e,) and the current ("I,"), and the
device of the present invention is an air faithful to the target signal wave. It causes vibration.
Therefore, the device according to the present invention 0 can be expected to have the following
effects, (1) faithfully gate both complex waveforms including wide frequency components such as
a tone signal, in both amplitude and phase. (2) Problems such as runner impedance and nominal
impedance, which conventionally required particularly difficult analysis, do not need to be
particularly problematic in this company's device. (3) The power amplification s't, which has been
08-05-2019
3
particularly problematic in the prior art, and the 'characteristic' and the hum level etc. do not
have to be a problem with 厭 M- in this device. 'No need for a source, etc.-)) It is possible to
reduce the price of products to zero. 5 (4) Generally, even in the speaker, the machine-like
motion is always a turtle with inertia, but in this device, it is possible to select an excellent
response characteristic that matches the 111) property of Insue-ka. Therefore, an improvement
result can be obtained even on one damping I11 wave characteristic as compared with a onepiece device.
4 Brief description of the drawings “Draft company” This is a grave If-type device. A Figure 1
company's basic configuration 4 block diagram showing the basic configuration Figure 2 Figure
2 a circuit diagram showing a specific example-1 figure 3 ti '' for explaining the drive system of
the speaker Figure 4 is a diagram of the speaker It is a figure which shows impedance I #. In the
drawing-(2) # i left shoulder, (3) (6) upper layer width-(I) company End page: 4
08-05-2019
4
Документ
Категория
Без категории
Просмотров
0
Размер файла
14 Кб
Теги
jps5177322
1/--страниц
Пожаловаться на содержимое документа