AI Patent Summary

Patent Document
#US5473758A
United States Patent 19
Abstract
A microcontroller and associated EPROM program memory are fabricated in a single semiconductor chip. The micro- controller device is adapted to be programmed using digital command words or other bit patterns applied as inputs after installation of the device in circuit with a system to be controlled by the device, and to have its programming pins isolated from the system to avoid effects on system operation while the programming is taking place. The in-circuit pro- gramming uses considerably less than the total number of input/output (I/O) pins of the device, which in total are fewer than the number of bits in a command word. This is achieved with a serial/parallel programming interface between the pins and the program memory, and by applying the data in serial fashion to the interface where it is latched and loaded in parallel. in the memory. Input data to the device may alternatively be entered in parallel to the interface in bytes of width less than the total number of I/O pins of the device.
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Patent Classification & AI Product Mapping
Authoritative patent classification definitions mapped to real-world technology domains and commercial product categories.
CPC G11C16/00
Confidence: High
Official Definition
Erasable programmable read-only memories
PHYSICS > INFORMATION STORAGE > STATIC STORES
AI Technology & Product Mapping
Technology Domain:
Non-Volatile Memory Architecture
Product Category:
Erasable Programmable Read-Only Memory (EPROM) Chips
Plain-English Summary:
Memory systems and technologies that allow data to be erased and reprogrammed multiple times, typically utilizing ultraviolet light or electrical voltages.
Relation to Claims:
The patent discloses an EPROM program memory integrated with a microcontroller on a single semiconductor chip.
CPC G11C16/02
Confidence: High
Official Definition
Erasable programmable read-only memories electrically programmable
PHYSICS > INFORMATION STORAGE > STATIC STORES
AI Technology & Product Mapping
Technology Domain:
Electrically Erasable Memory
Product Category:
EEPROM & Flash Microcontrollers
Plain-English Summary:
Memory devices that can be programmed and erased using electrical signals rather than external ultraviolet light sources.
Relation to Claims:
The patent details program memory that can be programmed using digital command words applied as inputs.
CPC G11C16/06
Confidence: High
Official Definition
Auxiliary circuits, e.g. for writing into memory
PHYSICS > INFORMATION STORAGE > STATIC STORES
AI Technology & Product Mapping
Technology Domain:
Memory Peripheral Circuitry
Product Category:
Microcontroller Subsystems
Plain-English Summary:
Support circuitry and peripheral hardware designed to assist with memory operations such as writing, reading, or voltage generation.
Relation to Claims:
The patent discusses interfacing elements like serial/parallel interfaces and latches used to facilitate writing to the memory.
CPC G11C16/10
Confidence: High
Official Definition
Programming or data input circuits
PHYSICS > INFORMATION STORAGE > STATIC STORES
AI Technology & Product Mapping
Technology Domain:
Memory Data Input/Output Interfaces
Product Category:
Microcontroller Programming Interfaces
Plain-English Summary:
Circuitry specifically dedicated to entering, transferring, or formatting data to be stored within a memory array.
Relation to Claims:
The abstract highlights a serial/parallel programming interface that latches data and loads it in parallel into the memory.
CPC G11C16/102
Confidence: High
Official Definition
External programming circuits, e.g. EPROM programmers; In-circuit programming or reprogramming; EPROM emulators
PHYSICS > INFORMATION STORAGE > STATIC STORES
AI Technology & Product Mapping
Technology Domain:
Embedded Systems & In-System Programming
Product Category:
In-System Programmable (ISP) Microcontrollers
Plain-English Summary:
Circuits and methodologies that allow a memory device to be programmed or reprogrammed while it is already installed and connected within a larger host system.
Relation to Claims:
The patent specifically claims in-circuit programming of the microcontroller and EPROM after installation, isolating programming pins from the system.