JPS58179892A - Music transferring system with telephone - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a system for transmitting music via a public switched telephone network.

(Background Art) The International Telegraph and Telephone Advisory Committee has determined that a normal frequency division multiplexing or time division multiplexing transmission telephone line has a bandwidth of 300
to 34001 (defined as z.

Therefore, it is impossible to transmit high fidelity music, which occupies a bandwidth of 20 Hz to 20 KHz, over the public switched telephone network.

This invention provides a system for transmitting music over a telephone line in which a keyboard device or a music synthesizer is installed at a receiving station, and an operator who freely handles the keyboard device or music synthesizer is located at a transmitting station. For example, if the instrument is a conventional organ, the keyboard, pedal board, and slide are located at the calling end, while the pipes and magnetically controlled air pulp are located at the receiving end. In the case of an electronic organ, the keyboard and control knob are located at the calling end, and the speaker or acoustic baffle is located at the receiving end.

Generally speaking, the music sound generator is located at the receiving end, and the control means for this music sound generator is located at the transmitting end.

Of course, if the operator wants to listen to Yamase's performance, the second local music device that the operator directly controls is located at the calling end, and the operator simultaneously and remotely controls the distant music device. do.

As far as the control of the musical sound generator is concerned, some devices, such as keys on a keyboard, are operated at relatively high frequencies, while other devices, such as stop controls and rhythm controls, are operated at relatively low frequencies.

(Disclosure of the Invention) The music transmission system by telephone according to the present invention includes a musical external tonality generator at a relatively high control frequency and a musical tonality control means at a relatively low control frequency on the transmitting end side. means for sampling the state of the control means and inferring bits whose binary value depends on the active or inactive state of the control means; means for grouping into multiple frames, such that each word appears in the multiple frames a predetermined number of times determined depending on the sampling frequency of the state the word contains;
and all words appear at least once in multiple frames.

By way of example, the musical instrument may be an electronic organ with 49 keys and control knobs for defining stop (in the sense of organ music), rhythm, volume or a particular mode of musical expression (arpenoggio, etc.). Assume that Knob control musical functions are described below. Therefore, the frame has octets (0C1et)%O for synchronization, and 49
The key is 6 octets, bits 1-6 and octet l'! 17 first pit]. These 49 bits have the same meaning in all frames. The remaining bits have different meanings in each frame - they have the same meaning in each multiple frame.

With this in mind, octet N[17 contains two address bits, and the value of this address is 00°01
.

Therefore, there are four frames in one multiplex frame. In this embodiment, (5+8)X4=5 for each multiplex frame.
There are 2 extra bits, clearly more bits than needed. This extra bit can be used as a transmission of volume or sound level in general.

Generally speaking, a multiplex frame has N bits,
The first N bits define the above control with the highest frequency (frame frequency). Next are 6og2p address bits, where pl specifies the address, followed by N2 information bits whose meaning changes for each frame,
This meaning is the same in every frame. N2 focus has a reproduction frequency equal to the frame frequency divided by p. Next follows 10g2p2 address bits, where B2 defines the address, followed by N3 information bits whose meaning is p, which changes from frame to frame, whose meaning is plp2
Identical from frame to frame. The N3 bit has a reproduction frequency equal to the frame frequency divided by p, B2.

The same applies below.

(BEST MODE FOR CARRYING OUT THE INVENTION) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, FIGS. 2 and 3 are block diagrams of an electronic organ as an example of a musical keyboard device for transmitting music over the telephone. In the figure, the electronic organ has 49 keys 101 to 130 and 131 to 149.
The keys 101 to 149 have seven lines N,
~N7 and 8 columns BII + B12 + B21
+1322 + B'31 + B32 + B41
+ Manually control the switch forming the intersection of the matrix by B4□. Line N1 is incomplete and has only one intersection point PI, I+. Lines N and ~N7 are each 8
two intersections, namely P, B2.4□ B7. It has II to B7,4□.

There are therefore actually 49 points of intersection, each controlled by 49 manual keys. The keyboard is line N1~N
7 and which are collected in one or more columns BII-B4□ depending on the current state of the keys on the keyboard.

As a result, the state of the keyboard cannot be detected in a queue or at any given moment, and detection of this state requires a buffer memory, as discussed below.

In FIG. 2, the intersection is a switch manually positioned by a key, and the matrix is excited by successive lines, thus giving six consecutive column words and one extra bit.

In FIG. 3, the bits corresponding to six 8-bit words and the 49th key are connected to terminal G11' G+2 +'
21 +0221 G3+ 1 (J32, (J4
1, G42, and those bits are used to position the point of intersection itself, and the point of intersection can use known devices such as relays or field effect transistors, for example.

Alternatively, it may be an ANIJ gate that scans lines G and N for coincidence.

Another possible variation is to discard the intersection points and
Output terminal from buffer memory 31 () (plus, 1
Buffer memory old pip corresponding to the 9th key]・)
are directly connected to the output terminals Bll to B42 of the matrix. Six 8-pit words are applied to the buffer memory IJ 31 in response to the reception of the bits, and the buffer memory 31 contains addresses generated when encoding the received matrix line N pulses in the address encoder 32. Read out.

In FIG. 3, the intersection points are shown as field effect transistors as T, , , % T7.4□.

There are a total of 20 musical function switches (in FIGS. 2 and 3) and are labeled with the same reference numeral indicating the bit representing the state of the musical function switch.

The 200 functions are shown below. That is, D591) ) L) 601) ) 1, ) 611) is used to encode a pair of stops selected among the five according to the following code (encoder 39):

D 591 D 601 D 611000
No selection 1 0 0 Organ 1-Organ 2 (9
01)0 1 0 trumpet-
Strings (9 (12) 110 Clarine note-oboe (903) 0 0 1 Piano-harpsichord (904) 1 0 1
Accordion-pibrahorn (905) D621
Orchestra Stop Switch Select one of two for each pair of stops D631 Sustained Rhythm Switch D 592 Marchy Tisco D602 Waltz-Rock D612 Tango Swing D622 Rumba Samba D632 Rhythm Selection Other Functions D593 Beat Variation D 603 Assistance Start D613 Start D623 Not used (Escape bin [) D633 Not used (Escape bit) D594 Pitch cart D604 Sustained tone 1) 614 Memory 1) 624 Multipath D634 In Albenogio figures 2 and 3, the various switches mentioned above are , a second blade is adapted to receive one of two different voltages, for example ground or 19 volts, depending on the position of the switch.

In FIG. 2, the musical function switch is manually operated. Their status appears in the 2o bit position register 150. In FIG. 3, these switches are controlled by the signals received at the receiving end and the same <2
Appears in register 160 with a zero bit position.

The electronic organ also has several potentiometers 151, 152 which are manually controlled in FIG.

153 and 154.

Referring now to FIG. 1, the frame consists of nine 8-bit eulogies. The first word of each frame is the sync word.

The frames are grouped into multiple frames of 36 words. In each multiplex frame, words NQI~Nn6
The empty focus has the same meaning. On the other hand, words M7 and N[
18 has different meanings depending on the frame number within the multiplex frame. These lines K G are word 11
! 17 haoo, ol, xo.

Contains two address bits that can take on 11 values.

7. Depending on the address value of the frame in the multiplex frame, the word 7. ~74 and 8. The bits ~84 have specific meanings.

Bit D. The words llI&lO containing -D7 are synchronous words.

Words N1-6 have a total of 6' x 8 = 48 focuses, and this focus corresponds to one of the 48 keys on the keyboard.
corresponds to

The words Nct 7+ to 74 mean according to the bit D corresponding to the 49th key on the keyboard, the two address bits D, 7 and 8 mentioned above, and the frame address in the multiplex frame, 91 ~D6. , , D5
92~D63□.

1] 5Q3~D633 + D5g4~■)6 It has 5 information bits that can be either one of them.

The meanings of these bits have been explained above.

FIG. 4 shows a music transmitting device. As already explained, the dynamic matrix 10 of the electronic organ has seven lines N1-N7 and eight columns BII I BI□.

B11 +B22 + B31 + B32 * B4
1 + B42. As already explained, clock pulses are continuously supplied to each line of this matrix 10 line by line. The matrix 10 is connected to a buffer memory 11 having a capacity of six 8-pit words. The line number of the matrix 1o is set to 3 by the encoder 12.
The input is encoded in focus. Buffer memory 11
The columns correspond to the columns of matrix 10.

TimePace I3 connected to both modem clocks of Orcan clocked modem 14 sends read order and address information to write/read switch 15. Therefore, key words 1-6 are read out successively after each active cycle of matrix 10.

These key words are transmitted via an 8-wire bus 17 to a Universal
nousReceiver Transmitter
:Hereinafter referred to as USRT. ) introduced in 16. U.S.
IL'r 16 is connected to synchronization word register ]8. Thus, synchronization word %0 and key words Nn1-6 are transmitted in series over telephone line ]9 by modem I4.

Another buffer memory 21 cache 17 register 2
Connected to 0. This backup memory 2I is the frame rhythm from the t child organ, that is, the key bit “1.I+
and 5-bit group D6, 1-1), 1. ,D,
92~D632, D5g3~D633, D, c
, 4 to D634, and these information are stored in register 1.
50 to a buffer memory 21 via a series-parallel register 20 which transmits 20 bits in consecutive groups of 5 bits. , , Also, the backup memory 21 receives continuous addresses 00 . . . from the modem 14 . Of, 10.11
is received in frame rhythm.

Successive words M7, which differ in their information content, are read out in the buffer memory 21 and introduced into the LISRT 16 and received by the modem 14 onto the telephone line 19.

Analog/digital converters 22, 23, 24,
25 converts the arpeggio strength, bass strength, rhythm strength, and tempo signals supplied from the potentiometers 151 to 154 into octets. These octets D641-D711, D642-D712
, D643-D713 and D644-D714
(see FIG. 1) is transmitted to the usaTlG by bus 17 at the appropriate time determined by time pace 13.

These octets are also partially supplied to digital-to-analog converters 42-45, which act as variable gain amplifiers to provide proportional intensities to potentiometers 151-1530, respectively. A tempo control signal having a value proportional to the position of the potentiometer 154 is supplied.

Referring now to FIG. 5, the words transmitted from the transmitter over the telephone line 19 are received by the modem 19, whose synchronization input terminal is connected to the modem clock.
Supplied to JsRT36.

The output terminal of U S l (, T 36 is the 8-wire bus 3
Connected to 7. This bus 37 includes a backup memory 31,
It is connected to buffer memory 41, synchronous word identification circuit 38, and four digital/analog converters 62-65.

Time base 33 receives timing information from the organ clock, the modem clock of modem 34, the synchronization word identification circuit, and address bits provided by buffer memory 41. The time base 33 receives words 1'lhl-6 in the read-write register 35 and buffer memory 41 modem clock rhythm, and transfers the words 6i-6 to the eight intersections T,...
"1.42. For this purpose, terminals 011~
G4□ is continuously connected to the column at the intersection. Line N
[11-7 are operated continuously in organ clock rhythm. The intersection points T, . . . are directly controlled by bits from the buffer memory 41.

The five bits received in word N[171-74 for each frame are stored in register 40 in a frame rhythm and transferred to register 160 in a multiple frame rhythm.

Word 'NQ8+~84 is digital/analog converter 6
2-65 into analog signals, and the digital/analog converters 62-65 operate as variable gain amplifiers to form the word 8. ~8. , an arpeggio signal, a bass signal, and a rhythm signal each having an intensity proportional to the value of the word 84, and a tempo control signal having a value proportional to the value of the word 84.

5, the 20 musical function bits are in register 1.
50 in parallel. Electronic organs exist where these focuses are obtained in series. In such a case, the memory, ie the memory play, performs the role played by the buffer memory 11 for four 5-bit words instead of for six 8-bit words.

As already mentioned, the frame has two escaped bits D6
23 and D633. These bits indicate that, depending on the reception, from the "telephone" operating mode, in which the telephone receiver is connected to the telephone line 19, this telephone line 19 is connected to the modem, or vice versa [Music J function mode] used to switch to.

Furthermore, the present invention provides a single control device with the devices shown in FIGS.
This also includes the case of connecting to a plurality of receivers equipped with the apparatus shown in FIGS. Finally, according to the invention, a plurality of remotely controlled organs 78, 79, . It is also possible to connect to a music bank 75 that stores a large number of music pieces in advance.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of a transmission signal frame in the telephone music transmission system of the present invention, and Fig. 2 shows keys on a manual keyboard, a musical function knob, and a potentiometer for adjusting the sound level arranged on the transmitting end side. Fig. 3 is a block diagram of the keys and musical function knobs on an automatic keyboard placed on the transmitting end side, Fig. 4 is a block diagram of a device for transmitting music by telephone, and Fig. 5 is a block diagram of a device for transmitting music by telephone. FIG. 6 is a diagram showing the configuration of a music sync in which a large number of pieces of music in the frame format of FIG. 1 are stored. 10...Matrix 11...Buffer memory 12...
...Address encoder 13...Time base ■, 1...Modem 15...Write/read switch 16...
......Dual-use synchronous receiver and transmitter 18...
・Synchronization word register 19...Telephone line 20...Register 21...Backer memory 30...
... Matrix 31 ... Back memory 32 ...
... Address encoder 33 ... Time base 3.1 ... Modem 35 ... Read/write register 36 ...
・・・・・・Double-use synchronous receiver/transmitter song・・・・・・・・・
Synchronous word identification circuit 40......Register 41...Panza memory patent applicant Allen Bernardo Jane Zacharcien Masse patent attorney Megumi Yamamoto - No. Continued from page 1 ■Applicant: Jeanne Zarcher, 10, Lannion Rue des Daouines, 22300 France ■Applicant: Lucien Massé, 22300 Lannion Rospets Kretsch Morvein, France (no street address) Procedural amendment (voluntary) April 26, 1980 Kazuo Wakasugi, Commissioner of the Japan Patent Office1, Indication of the case, Patent Application No. 44551, filed in 19882, Title of the invention: System for transmitting music by telephone3, Relationship with the amended person case Patent Applicant's name Completed/N Penalt (2 others) or more

Claims (1)

Claims: (11) a keyboard with a plurality of keys and a plurality of buttons or switches, the keys and the buttons or the switches selectively providing electrical musical parameter control signals; some of the electrical music parameter control signals have relatively high frequencies and other of the electrical music parameter control signals have relatively low frequencies;
a music device forming a console in which the keyboard and the buttons or switches are located on a transmitting end side; (bl) the music device is further located on a receiving end side;
in a system for transmitting music in real time over a telephone line connecting an originating telephone to a receiving telephone, the console further comprising a musical sound generator controlled by the electrical music parameter control signal; converting the electrical music parameter control signal into a series pulse of a binary code with a relatively high reproduction frequency, and converting the electrical music parameter control signal of a relatively low frequency into a series pulse of a binary code with a relatively low reproduction frequency; an encoder for converting the serial pulses of the binary code provided by the telephone line into an electrical musical parameter control signal; (2) A console is located at a central point, and each of a number of receivers connected to the central point by a telephone line is provided with a musical sound generator. 3. A telephone music transmission system according to claim 1, wherein the console sends electrical control pulses to all of the music sound generators in parallel. (3) Console keys and buttons or switches. The electrical control pulses supplied by the music device are continuously supplied by the music device at a speed determined by a clock provided in the music device, and are sent in a line by the modem at a speed set in the modem, Claim 1, wherein the console includes a buffer memory for receiving the electrical control pulses at the speed of the music device and providing the electrical discrete pulses to the modem at the modem speed. (4) A music bank for storing a plurality of pieces of music for a keyboard and a musical function switch in the form of binary frames and multiple frames, and a system for accessing the music bank, and a subscription system as described above. A telephone music transmission device according to claim 1, wherein a person owns a musical device completed by the keyboard and the musical function switch connected to the music bank by telephone.(5)(a) a keyboard with a plurality of keys and a plurality of buttons or switches, the keys and the buttons or the switches selectively providing electrical music parameter control signals, a number of the electrical music parameter control signals; has a relatively high frequency and the other said electrical musical parameter control signal has a relatively low frequency;
(b) the music device further includes a music device forming a console in which the keyboard and the buttons or switches are located at a transmitting end; (b) the music device is further located at a receiving end;
a musical sound generator controlled by the electrical music parameter control signal; the console further transmitting the electrical music parameter control signal at a relatively high frequency to two frequencies at a relatively high reproduction frequency;
an encoder for converting the electrical music parameter control signal of a relatively low frequency into a series pulse of a binary code and supplying the same to the telephone line; and wherein the musical sound generator further includes a decoder for converting the serial pulses of the binary code provided by the telephone line into electrical musical parameter control signals; a telephone connecting an originating telephone to a receiving telephone; In a system for transmitting music in real time over a network, the serial pulses of the binary code form words, the words are multiplexed into frames, and the frames are multiplexed into multiple frames, and the serial pulses of the binary code form words, and the frames are multiplexed into multiple frames, and the word associated with the electrical control pulse of a relatively low frequency appears in all the frames, and the word associated with the electrical control pulse of a relatively low frequency appears in the several frames of the multiplex frame. A music transmission method by telephone that is characterized by the fact that it does not appear. (6) several words associated with relatively low frequency electrical control pulses have address bits, the words appear at different addresses in the multiplex frame, and information bits in the words follow the address bits; 5. The music transmission system by telephone according to claim 5, in which the meaning changes when the address changes.