JPS599994B2 - Spatial memory method - Google Patents

Description

Detailed Description of the Invention The present invention uses outer space as a delay memory element, and in particular uses artificial stars such as artificial satellites and artificial planets to reduce the propagation delay when light and electromagnetic waves propagate in outer space. This relates to a spatial memory system in which a delay circuit is constructed using .

The use of a delay element as a memory element includes an ultrasonic memory method using a mercury delay line, a solid delay line method using fused silica, and an electric delay line method using a coaxial cable or waveguide. There is.

The principle of a memory device using these delay elements is, as shown in FIG. 1, that information is transmitted to the input terminal of a gate circuit 1.
This is introduced into the delay memory element 2. The information introduced into the delay storage element 2 is subjected to a certain delay action here and then appears as an output. Since the information obtained from the duet memory element 2 is attenuated when passing through the delay memory element 2, it is amplified by the regenerative amplifier 3 and after shaping the waveform distortion, it is applied to the gate circuit 1 again. . With this configuration, the information initially applied to the gate circuit 1 circulates within the loop of gate circuit 1 - delay storage element 2 - regenerative amplifier 3 - gate circuit 1, so that the information is transmitted within the loop. will be memorized. but,
In the method shown in FIG. 1, information is simply stored, and in order to make this a practical storage device, a method as shown in FIG. 2 is required.

In the figure, 4, 8, 9 are gate circuits, 5 is an OR circuit, 6 is a delay memory element, 1 is an amplifier, 10 is an inverter circuit, 11
is a comparator. When input information to be stored is currently applied to the input terminal of the gate circuit 4, if a write control signal is applied to another input terminal of the gate circuit 4, the gate circuit 4 opens and the input information applied from the input terminal is applied. is guided to the delay storage element 6 via the OR circuit 5.

The output of the delay storage element 6 is applied to an amplifier 7.
The output of 0 is applied to one input terminal of the gate circuit 8.
A clock pulse is applied to the other end of the gate circuit 5, and the output of the amplifier 7 is rectified by this clock pulse, so that the distortion caused when passing through the delay storage element 6 is corrected. The output of the gate circuit 8 is transmitted to the gate circuit 9. A set/reset signal is applied to the other input terminal of the gate circuit 9 via the inverter circuit 10.
The gate circuit 9 is configured to close when a reset-on signal is applied to the inverter circuit 10. Therefore, once the information is sent from the input terminal of the gate circuit 4, it is circulated within the loop of OR circuit 5 - delay storage element 6 - amplifier 7 - gate circuit 8 - gate circuit 9 - OR circuit 5 and stored. It turns out. This memory state continues until a set-on signal is applied to the inverter circuit 10 and the gate circuit 9 is closed, but when the gate circuit 9 is closed, only the information that could not pass at that time is erased. . Note that the information stored in the delay element storage system shown in FIG. 2G can be selected and retrieved from the right end of FIG. 2 by applying an address signal of the information to a comparator.

An object of the present invention is to obtain a space memory method using outer space as the delay memory element 6, and for this purpose, a transmitting means for transmitting an information signal in the form of radio waves to outer space; a receiving means for receiving information signals transmitted in the form of radio waves from outer space; a control means for transmitting and receiving information signals and commands in the form of radio waves to and from a ground station on earth; means for amplifying and shaping the information signal, and a means provided between the receiving means and the transmitting means for transmitting the information signal No. 4 from the receiving means to the controlling means and further transmitting the information signal from the controlling means to the transmitting means. A plurality of artificial stars equipped with gate means having a function of transmitting data to One is characterized by transmitting and receiving the above-mentioned information signals and commands to and from the above-mentioned ground station on the earth, and obtaining delayed storage means by utilizing the time that radio waves propagate in outer space. be.

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

In the figure, 12 is a gate circuit, 13 is a tracking control circuit that exchanges commands with the ground station, 14 is an encoder, 15 is a clock generator, 16 is an original transmitter, 17 is a decoder, and 18 is a 19 is a clock generator, 19 is a synchronous circuit, 20 is an amplifier, 21 is a gate circuit, 22 is a clock generator, 2
3 is the earth, 24, 24', 24'' is the artificial satellite, 25, 2
5', 25'' are transmitting antennas, 26, 26', 26'' are receiving antennas, 27, 27', 27 are transmitters, 28,
28' and 28'' are receivers. Figure 3 shows the main electrical equipment installed on the artificial star.

Radio waves from other artificial stars are received by the antenna and then guided to the decoder 17. A clock generator 18 controlled by a synchronization circuit 19 for synchronizing with the received signal is connected to the decoder 17. The signal decoded by the decoder 17 is amplified by an amplifier 20, and the output of the amplifier 20 is shaped by a gate circuit 21 to which clock pulses generated from a clock generator 22 are applied. In this way, attenuation and waveform distortion that occur while the signal is propagating in space are reshaped in the same manner as the initial transmission waveform, and then passed through the gate circuit 12 and the encoder 14 to a frequency of, for example, 8 GHz. It is transmitted again to other artificial stars etc. using the carrier wave. In other words, as shown in FIG. The radio waves transmitted from the transmitting antenna 25 are received by the receiving antenna 26' of the artificial satellite 24' and transmitted to the receiver 28'.This received signal is reshaped by the circuit shown in FIG. Then, the signal is transmitted from the transmitting antenna 25' by the transmitter 27' to the artificial satellite 2II'.The artificial satellite 21 transmits the signal again in the same manner as the artificial satellite 24', is received by the receiving antenna 26, and after being shaped as described above, is again transmitted from the transmitting antenna 25 by the transmitter 27. In this way, the coded data as described above is transmitted between the artificial satellites 24, 24', 24''. By transmitting and receiving radio wave signals in a loop, it is possible to obtain a spatial memory that utilizes the time required for the radio waves to propagate in the loop of space, and the outer space that exists between the artificial satellites can be It can be used as the delay memory element 6 shown in FIG.

When reading or erasing data written in the spatial memory configured as described above, the ground station transmits the address signal.

The transmitted radio waves from the ground station are received by the artificial satellite and sent to the third
It is propagated to the gate circuit 12 via the tracking/control command system circuit 13 shown in the figure, and the gate circuit 12 reads or erases the data at the address. When reading, the data is transferred to the ground via the tracking/control command system circuit 13. Furthermore, when data is to be stored in the spatial memory, the ground station transmits the data and an address at which the data should be stored. These signals are transmitted to the gate circuit 12 via the tracking/control command system circuit 13, and data is written by the encoder 14 at the address to be written. Then, it is transmitted to other artificial satellites using a carrier wave of, for example, 8 GHz. When an artificial satellite loaded with a transmitting/receiving device as described above is launched to a height of 35,8001 cm above the earth and placed in an orbit around the earth, it becomes a geostationary satellite.

If such geostationary satellites are launched so that each of the geostationary satellites 24, 24', 24'' is located at the apex of an equilateral triangle as shown in Figure 4, the equilateral triangle connecting each satellite 24, 24', 21 The week-side distance of the triangle is approximately 18.6×10 4 b. The storage capacity in the space memory system that utilizes the outer space formed by the artificial satellites 24, 24', and 24'' is calculated as follows. That is, the storage capacity of the delay storage device is
It is proportional to the delay time of the delay element, and the time it takes for the signal to go around the delay line is T1. The interval between clock pulses is T. Then, the maximum storage capacity N is N=T/TO (bit)...
...(1).

Now, if we take 100ns as a clock pulse, the speed of light is 30 x 1041g! l/SeC, the time T required for one round between the artificial satellites 24, 24', and 24 shown in Fig. 4 is T = (18.6X1041Cff1) ÷ (3
0x104r) 0.62 (Sec).

and the interval T between clock pulses. is 100 nanoseconds, so T. =100X10-3. Therefore, the maximum capacity N stored in the delay line between these satellites is
From the above formula (1), N-0.62/100×10-9-
This is 6.2 x 106 bits or 6.2 megabits.

Thus, a spatial memory constructed from a plurality of satellites placed around the earth can provide convenient communal storage for an international computer network, as shown in FIG. 5, for example.

In FIG. 5, the space memory 30 located at the center is an outer space memory composed of the plurality of artificial satellites shown in FIG. 31-1 to 31-8 are central processing stations located around the world, 31-1 is Japan, 31-2 is
is the United States, 31-3 is Brazil, 31-4 is the United Kingdom, 3
1-5 is West Germany, 31-6 is Australia, 31-
7 represents those placed in India, and 31-8 represent those placed in Canada.

The central processing stations located in each country are 1 as shown in Figure 6.
It is composed of a next station 32, a secondary station 32', modems 33, 33', ground stations 34, 34', etc. The primary station 32 and secondary station 32I are composed of a central processing unit or an intelligent terminal. Information from the primary station 32 is sent to the modem 3
3 to the ground station 34, and from the ground station 34 to the artificial satellite 35.

In this way, information from the primary station 32 can be stored in the space memory formed by a loop formed by each satellite. When accessing necessary information, the satellite 35 similarly transmits the necessary information based on a command from the primary station 32. The transmitted information is sent to the ground station 34'
and transmitted to the central processing unit and intelligent terminal 32' via modem 33'. In this way, it becomes possible to freely store information in the spatial memory 30 from central processing stations provided in each country, and to retrieve information stored in the memory. In this case, the spatial memory 30 can be accessed from the ground station by delaying the time required for the radio waves to arrive. Furthermore, as shown in Figure 7, artificial planets 38-1, 38-2, 38-3, and 38-4 are launched around the sun 36 on the same orbit as the earth, and the space between these artificial planets is It can also be used as memory. The Earth 37 revolves around the Sun 36 in a circular orbit, and its aphelion is 1.5
20×1081c1n and the perihelion is 1.470×10
81 (m) and the eccentricity is 0.01672, so it can be considered to be an approximately circular orbit. Therefore, artificial planets 38-1 to 3
If the artificial planets 8-4 are launched at equal intervals, these artificial planets 38-1 to 38-4 will be located at the vertices of a square. Now let's set the radius of the circle circumscribing this square to 1.4, which is the same as the earth's nearness to the sun, El.
The length of each side of each TU4 square is 2.
178×10! r, and the sum of the four sides of the square is 4 times that, 2.178 x 1081 CI! IL-8.7×108-
becomes.

Since the speed of light is approximately 30 x 104-/SeC, the time T required for light to travel once between these artificial planets is TL-
(8.7×1081C111) ÷ (30X104kgA
ec) Z2.9×103 (Sec).

Now set the clock pulse t to 100 nanoseconds, that is, t=1.
00X10-9 (Sec), the maximum storage capacity N stored in the loop between these artificial planets is NL, (2
．． 9 x 103) ÷ (100 x 10-9) L, 29 x 10
9 (bits), or 29 gigabits.

Since the maximum storage capacity of the main storage device currently installed in the central processing unit is 64 tag pits, it is possible to obtain a storage device with a capacity approximately 500 times that amount.
Of course, if a reclock pulse with a high frequency is used to increase the number of channels by utilizing the directivity of radio waves, the capacity can be further increased. Furthermore, as shown in FIG. 8, there are artificial satellites 39-1 to 39-3 around the earth 37.
9-6 to form a first delay loop, and separately launch artificial planets 40-1 to 40-7 around the sun 36 to form a second delay loop.

Furthermore, geostationary satellites 41-1 to 41-3 are launched above the earth 36. (41-2 and 41-3 are omitted from illustration.) Commands from the earth are transmitted to the geostationary satellite 41-1.

Assuming that this command from the earth is for example to read stored information, the following will occur. First, the geostationary satellite searches for the stored information to see if it exists in the first delay loop made up of the artificial satellites 39-1 to 39-6, and if it exists in the first delay loop, reads it out, It will be transmitted to earth. If it does not exist in the first delay loop, it accesses the second delay loop made up of the artificial planets 40-1 to 40-7, reads out the necessary information, and transmits it to the earth. Note that the number of delay loops made up of artificial satellites is not just one, but multiple ones can be provided by changing the angle of the delay loops made up of artificial satellites, so the storage capacity can be made very large as necessary. I can do it. As described above, according to the present invention, outer space can be used as a memory, and by using a large amount of outer space, it becomes possible to easily obtain a memory with a very large storage capacity.

Furthermore, as shown in FIG. 8, outer space can be used hierarchically, making it possible to obtain an even larger capacity. Furthermore, as shown in Figure 5, if a common space memory is used in each country, it will be very easy to share the use of multiple computers, and it will be possible to actively use the computers of other countries that are available. becomes easier.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the principle of a storage system using delay elements, Fig. 2 is an explanatory diagram of the case where delay elements are used in an information processing system, and Fig. 3 is a decoding and encoding scheme used in the present invention. FIG. 4, FIG. 7, and FIG. 8 are examples of the present invention. FIG. 5 is an explanatory diagram of the usage method of the present invention. FIG. It is a route diagram to a secondary station.

Claims (1)

[Claims] 1. Transmitting means for transmitting information signals in the form of radio waves to outer space, receiving means for receiving information signals transmitted from outer space in the form of radio waves, and a ground station on the earth. a control means for transmitting and receiving information signals and commands in the form of radio waves between the two; a means for amplifying and shaping the information signal received by the receiving means; and a control means provided between the receiving means and the transmitting means to receive information from the receiving means. Arranging in outer space a plurality of artificial stars equipped with gate means having a function of transmitting a signal to the control means and further transmitting an information signal from the control means to the transmission means, and transmitting information via the plurality of artificial stars. The information signal is configured to propagate radio waves in a loop shape, and
At least one of the artificial stars is configured to transmit and receive the information signals and commands to and from the ground station on the earth, and to obtain delay storage means using the time that radio waves propagate in outer space. Characteristic spatial memory method. 2. The spatial memory system according to claim 1, wherein an artificial satellite is used as the artificial star. 3. The spatial memory system according to claim 1, wherein an artificial planet is used as the artificial star. 4 As the above artificial star, a first delay loop consisting of a plurality of artificial satellites existing in an orbit centered on the earth, and a second delay loop consisting of a plurality of artificial planets existing in an orbit centered on the sun. 2. The spatial memory system according to claim 1, wherein the delay loops of both systems are arranged in a hierarchical relationship.