Abstract: The present invention relates to economically fabricated means for the generation and processing, member selection, and acoustic radiation of pluralities of individual tone currents originating from at least one high frequency source and formed by note-information temporarily transferred through key depression, from permanent electronic memories to temporary memories in small numbers of standard tone units, in precise duplication of properties of pipe organ sound.There is described an electronic transfer organ for duplicating twenty-six known properties of pipe organ sound. The illustrative, inventive instrument employs completely standardized circuitry except for automatically programmable memories for each organ voice, which contain all the information required to form, switch and variously decouple all the notes in that voice.

Abstract: The disclosed organ employs keyboard-activated transfer of individualized tone and envelope-generating information from large memories for each distinctive set of a note's harmonics, to small memories in small circuits corresponding to each harmonic set. Selection of large memories programmed for different temperaments or voice types renders the organ playable as one or another type of organ (e.g., gothic, classical, romantic, theater) in a variety of temperaments (e.g., just-temperament, mean-tone, equal-temperament). Information transferred from any selected large memory causes a circuit common to one or more sets of a note's harmonics to sweep the harmonic data transferred to the small memories for all the note's harmonic sets, to generate respective currents representing attack and decay envelopes for all the note's harmonic sets.

Abstract: One or more electrodes of an electro-optic device are supported on a separate substrate which is held in close contact with the electro-optic element of the device so that the electric fields that are created when voltages are applied to such electrodes are proximity coupled into the electro-optic element. Proximity coupling is especially advantageous for multi-gate light valves and the like where separate electrical connections have to be made to a multitude of electrodes because it permits those connections to be made remotely from the electro-optic element. However, the broader aspects of proximity coupling are applicable to electro-optic devices in general, including bulk and TIR electro-optic modulators and straight through and TIR multi-gate electro-optic light valves.

Abstract: The gap between the electrodes and the electro-optic element of a proximity coupled electro-optic device, such as a multi-gate light valve for an electro-optic line printer, is filled with a dielectric having a relative dielectric constant (i.e., the dielectric constant relative to that of air) which is substantially greater than 1, thereby reducing the effective electrical thickness of the gap which, in turn, enhances the proximity coupling.

Abstract: The electronics for driving one or more electrodes of an electro-optic device, such as a multi-gate light valve for an electro-optic line printer, are embodied in an integrated electrical circuit, such as a LSI silicon integrated circuit. A conductive film, such as a metalization layer or a polysilicon layer, is deposited on the silicon circuit to electrically connect to the integrated drive electronics, and the electrodes are defined by patterning the conductive film. To complete the electro-optic device, the integrated circuit is held against an electro-optic element so that the electric fields created when voltages are applied to the electrodes are proximity coupled into the electro-optic element.

Abstract: The present invention relates to economically fabricated means for the generation and processing, member selection, and acoustic radiation of pluralities of individual tone currents originating from at least one high frequency source and formed by note-information temporarily transferred through key depression, from permanent electronic memories to temporary memories in small numbers of standard tone units, in precise duplication of properties of pipe organ sound.There is described an electronic transfer organ for duplicating twenty-six known properties of pipe organ sound. The illustrative, inventive instrument employs completely standardized circuitry except for automatically programmable memories for each organ voice, which contain all the information required to form, switch and variously decouple all the notes in that voice.

Abstract: A mapping arrangement for memory overlay wherein the address coordinates are referenced to a main serial memory. This main memory is partitioned into pages of equal size. An accelerator memory is concurrently loaded with a few pages representing a small portion of the main memory contents and is periodically overlayed with new memory contents on a page-at-a-time basis as the using system demands. During this overlay the fields of the accelerator memory are inscribed at corresponding main memory address coordinates together with code bits indicating whether certain memory fields go together and are therefore promoted as a single unit. The resulting effect is to cause an apparent increase in page size since more than one page is promoted as a consequence of a reference to a page not contained in the accelerator memory.

Abstract: A memory control processor adapted to expand a random access or accelerator memory by logical overlays which performs these overlays into memory fields (pages) on the basis of page usage history. To provide a quick reference to page use a chronological sequence is established by links rather than by reordering a stack. This link sequence is tied by very limited leads to the rest of the memory control processor and can therefore be updated during each memory access. In addition the memory control processor includes a task priority logic integrating various competing memory access requests with the overlay operations. To achieve the various transfer modes in the quickest time the memory control processor is organized around a wide control memory storing the task servicing sequences. The width of the control memory and the associated task logic allow general purpose microprogrammable direct memory access which may further be utilized in multiplexed fashion to accommodate various concurrent tasks.

Abstract: A distributed function processing system utilizing a conventional microprocessor operated as a text processor in combination with a plurality of other autonomous processing devices arranged to operate in a coherent processing system. One of the autonomous processors which is a memory control processor serves to periodically overlay a random access accelerator memory with the contents of a main memory system and concurrently resolves conflicts among various other autonomous memory service requests. This processor, therefore, accommodates the data rates of the main memory. The other processor is a display processor which generates signals to a video display system to provide a visual interface to the user and is therefore tied to the video rate. Accordingly, the processing burden is distributed within processors entailing differing rates operating autonomously.

Abstract: A memory control processor adapted to expand a random access or accelerator memory by logical overlays which performs these overlays into memory fields (pages) on the basis of page usage history. To provide a quick reference to page use a chronological sequence is established by links rather than by reordering a stack. This link sequence is tied by very limited leads to the rest of the memory control processor and can therefore be updated during each memory access. In addition the memory control processor includes a task priority logic integrating various competing memory access requests with the overlay operations. To achieve the various transfer modes in the quickest time the memory control processor is organized around a wide control memory storing the tank servicing sequences. The width of the control memory and the associated task logic allow general purpose microprogrammable direct memory access which may further be utilized in multiplexed fashion to accommodate various concurrent tasks.

Abstract: A memory control processor adapted to expand a random access or accelerator memory by logical overlays which performs these overlays into memory fields (pages) on the basis of page usage history. To provide a quick reference to page use a chronological sequence is established by links rather than by reordering a stack. This link sequence is tied by very limited leads to the rest of the memory control processor and can therefore be updated during each memory access. In addition the memory control processor includes a task priority logic integrating various competing memory access requests with the overlay operations. To achieve the various transfer modes in the quickest time the memory control processor is organized around a wide control memory storing the task servicing sequences. The width of the control memory and the associated task logic allow general purpose microprogrammable direct memory access which may further be utilized in multiplexed fashion to accommodate various concurrent tasks.