SU818331A1 - Associative addressable optical storage device - Google Patents

Description

A known associative-address optical memory circuit comprising a radiation source, a beam addressing unit optically coupled to the first beam forming unit, a second beam forming unit optically coupled to a beam focusing unit that is optically coupled to the unit through a controlled transnational information storage, n control unit, the outputs of which are connected to the radiation source, beam addressing unit, controlled transparency and information storage unit, the first controlled light transducer is introduced a third beamforming unit; a first beam splitting unit; a fourth beam forming unit; a second beam splitting unit; a projection unit; a first convergence unit. Moreover, the input of the first controlled light switch is optically connected with the optical output of the radiation source, the first optical output of the first controlled light switch is optically connected with the optical input of the beam addressing unit, the first optical beamforming unit with the first input of the first convergence unit, and the second optical output the first controlled light switch through successively located third beam forming unit, the first beam splitting unit, the fourth beam forming unit, the second block p beam splitting, the projection unit is optically coupled to the second optical input of the first convergence unit. The output of the first beam converting unit is optically coupled to the input of the second beamforming unit, the output of the control unit is connected to the first controllable light switch.

A second controlled light switch, a fifth beam forming unit, a third beam splitting unit, a sixth beam forming unit, and a second beam converting unit are introduced into the tacles device. Moreover, the optical input of the second controlled light switch is optically connected to the output of the beam addressing unit, the first optical output of the second controlled light switch is optically connected to the first beam forming unit, the optical output of the second controlled light switch is burnt through sequentially located the fifth beam forming unit, the third block the beam splitting, the stray beam forming unit is optically coupled to the first input of the second convergence unit, the second input of the second optical convergence unit Ki is associated with the release of the first block of the convergence, the output of the second block of the convergence optically coupled to the input of the second beam forming unit, the output control unit

is connected to the second) controlled switch.

The drawing shows the block diagram of the proposed device. AAOZU contains a radiation source 1, in which quality can be used, for example, lasers, radiation diodes, injection lasers, etc .; controllable light switch 2, consisting, for example, of a beam-separating polarization cube, transmitting or reflecting light beams depending on the orientation of the polarization plane, and a light polarization switch, which, for example, when applying a voltage, rotates the plane of polarization of the passing beams on the unit addressing the beam with the optical system 3, providing an arbitrary specified addressing

light beams in writing, reading, erasing and associative selection of words (word blocks) of information, for example, an electro-optical or acousto-optical deflector, etc. can be used as a beam addressing unit; controlled light switch 4; beam forming unit 5 consisting, for example, of a lenticor optical system or beam splitter, e.g.

birefringent elements or holographic, splitting a beam into a plurality of beams, the number of which is equal to the total number of working cells of a controlled transparency, convergence units for beams 6

and 7, consisting of a polarized beam-splitting cube or a translucent mirror. In addition, the device includes a beamforming unit 8; controlled transparency (UT) 9, carrying out

space-time modulation of the light beam in accordance with the code intended for recording information, or in accordance with the interrogation feature with associative selection of information;

beam focusing unit 10, information storage unit 11; a beam forming unit 12 and a beam splitting unit 13, for example a holographic or consisting of duplicating prisms, splitting the beam of the radiation source 1 into a plurality of beams, the number of which is equal to the number of addresses of the beam addressing unit 3, the beam forming unit 14; beam splitting unit 15, implementing

the splitting of each beam coming from the splitting unit 13 into a plurality of rays, the number of which is equal to the number of cells of the TN 9, displaying the code of the poll for the information page, for example, with binary support units; a projection unit 16, a beamforming unit 17; the beam splitting unit 18, splitting the beam entering it from the beam addressing unit 3 into a plurality of rays, the number of which is equal to the number

UT 9 cells displaying a sign of a word or a block of words; beamforming unit 19. A control unit (CU) 20, which provides the operation of the AAOZ in the address and associative modes of information processing.

When address processing information, the device operates as follows.

The radiation source 1 works, for example, when recording at the wavelength v3an4 and reading - Yaschit-. and when erasing, an X-wash. By a command from block 20, the light beam through a controlled light switch 2 is fed to the beam addressing unit 3, it is set to the position corresponding to the address of the microframe, which information is to be addressed. The light beam passes the controllable light switch 4 and with the help of beam forming unit 5, beam converting units 6 and 7 and beam forming unit 8 expands (or, for example, splits) and guides to illuminate all the working cells of the controllable transparency 9.

On the controllable transparency 9, for example, during recording, the code of the recorded information is displayed, which is received by a command from block 20 from any real source of information (for example, any type of memory, processor, etc.).

When reading and erasing pages of information, all information cells of UT 9 work for transmission; when erasing individual words (word blocks) in the information page, block 20 switches only those UT 9 cells into pass mode, in which information should be erased and rewritten, the remaining cells are masked. A light beam modulated by a controllable light 9 is directed by means of a beam focusing unit 10 to a storage unit 11 for further processing.

When associative information processing device operates as follows.

In the mode of associative search of information pages, the radiation source 1 operates and the wavelength A, counted. By command of the CU 20, the controlled light switch 2 directs the light beam through the beam forming unit 12 to the beam splitting unit 13, which splits the beam of the radiation source 1 into many beams, the number of which is equal to the number of addresses of the beam addressing unit 3. This set of rays through the beamforming unit 14 is fed to the beam splitter unit 15, which splits each beam coming from the beam splitter unit 14, in m a number of beams, the number of which is equal to the number of UT 9 cells, displaying the code of the polling sign of the information page, for example, with reference binary units. These light patterns by the projection unit 16 are projected through the blocks 6, 7 and 8 onto the controllable transparency 9 and illuminate only those UT 9 cells that display the code and illuminate only those UT 9 cells that display the code of the poll sign of the information page. The light beams modulated by the UT9 banner through the beam focusing unit 10 enter the information storage unit 11 for further processing.

In the associative word search mode (block of words) in the information page, the radiation source 1 operates at the wavelength of the ASChNT. At the command from the CU 20, the light beam through the controlled light switch 2 enters the addressing block of the beam 3, which is set to the position corresponding to the address of the microframe, which is subject to associative processing. The controllable light switch 4, by the command of the CU 20, directs the light beam through the block 17 to the beam splitting unit 18, which splits it into a plurality of beams, the number of which is equal to the number of the UT 9 cells displaying the code of the sign of the word poll or the word block, for example, with support binary units. These light beams through the beamforming unit 19, beam convergence unit 7 and beamforming unit 8 illuminate all UT 9 cells intended for associative word signs (word blocks), in which CU 20 displays the word polling word or word block when searching.

The modulated UT 9 light beam is transmitted by a beam focusing unit 10 to an information storage unit 11 for further processing.

It should be noted that the channel for illuminating the UT 9 cells displaying the associative features of words (word blocks) can also be used to illuminate the UT9 cells displaying the indication of polling information pages. In this case, the command of the CU 20 illuminates all the address positions of the beam addressing unit 3 (for example, the.: Electrooptical deflector). The resulting raster of light beams is supplied by the command of the CU 20 through the controlled light switch 4 and the beamforming unit 17 to the beam splitting unit 18, which splits each raster beam into a plurality of beams, the number of which is equal to the number of TCs of the information page. These beams come through beamforming unit 19 and beam converting unit 7 to beamforming unit 8 and illuminate only those UT 9 cells that display the indication of polling the information page.

However, when using separate channel information for associative search of pages, an additional gain in light energy can be obtained, therefore, in speed, since a block with smaller notaries of light than the block of addressing beam 3 can be used as a splitter of a beam 13. In this case, more efficient blocks, such as acousto-optical deflectors that do not provide simultaneous release, can be used as a beam addressing unit in AAOZU. chivaniya all address positions of the beam, which is necessary for the associative search pages of information.

The device will significantly reduce the power requirements of the radiation source, as well as improve the performance of the AAOZU in the associative search mode by about 100 times.

Claims (2)

1. An associative addressable optical memory containing a radiation source, a beam addressing unit optically coupled to a first beam forming unit, a second beam forming unit optically coupled via a controlled transparency to a beam focusing unit that is optically coupled to a storage unit control unit, the outputs of which are connected to a radiation source, a beam addressing unit, a controllable transparency and an information storage unit, characterized in that, in order to increase speed devices, the first controlled light switch, the third beam forming unit, the first beam splitting unit, the fourth beam forming unit, the second beam splitter unit, the projection unit, the first beam converting unit, the input of the first controlled light switch are optically coupled to the optical output the radiation source, the first optical output of the first controlled light switch is optically connected to the optical input of the beam addressing unit; the first beam forming unit is optically connected to the first input m the first beam converting unit, and the second optical output of the first controlled light switch through successively the third beam forming unit, the first beam splitting unit, the fourth beam forming unit, the second beam splitting unit, the projection unit optically connected to the second beam converting unit , 10 and the output of the first convergence unit is optically coupled to the input of the second formation unit, the output of the control unit is connected to the first controlled light switch. 5 2. An associative addressable optical storage device according to claim 1, characterized in that a second controllable light switch, a fifth beamforming unit, are introduced into it; the third beam splitting unit 0, a shielding beam forming unit, a second beam converging unit, the optical input of the second controlled light switch optically connected to the output of the beam addressing unit, the first optical output of the second controlled light switch optically connected to the first beam forming unit, the second optical the output of the second controlled light switch through successively located fifth beam forming unit, the third beam splitting unit, the sixth beam forming unit is ogistically connected with n rvym input of the second block of the convergence, a second input of the second unit of the convergence optically coupled to the output of the first block of the convergence, the output of the second block downmix ray optically coupled to the input of the second beam forming unit, the output 0 of the control unit is connected to the controlled second svetopereklyuchatelyu. Sources of information taken into account in the examination 1. Certificate of authorship on application L 2558655 / 18-24, cl. G 11 C 11/42, 1977. 2. The copyright certificate for the application, 2603039 / 18-24, cl. G 11 C 11/42, 1978.