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    • 3. 发明授权
    • Methods and apparatus for designing and constructing multi-port memory circuits with voltage assist
    • 用于设计和构造具有电压辅助功能的多端口存储器电路的方法和装置
    • US08760958B2
    • 2014-06-24
    • US13421704
    • 2012-03-15
    • Sundar IyerShang-Tse ChuangThu Nguyen
    • Sundar IyerShang-Tse ChuangThu Nguyen
    • G11C8/00G11C8/16
    • G11C11/419G11C8/16G11C11/412G11C11/413
    • To handle multiple concurrent memory requests, a dual-port six transistor (6T) SRAM bit cell is proposed. The dual-port 6T SRAM cell uses independent word lines and bit lines such that the true side and the false side of the bit cell may be accessed independently. Single-ended reads allow the memory system to handle two independent read operations concurrently. Single-ended writes are enabled by adjusting the VDD power voltage supplied to a memory cell when writes are performed such that a single word line and bit line pair can be used write either a logical “0” or logical “1” into either side of the bit cell. Thus, single-ended operation with a voltage assist allows a memory system to handle two concurrent write operations. A write buffer may be added to the memory system to prevent conflicts and thus enable concurrent read operations and write operations in a single cycle.
    • 为了处理多个并发存储器请求,提出了一个双端口六晶体管(6T)SRAM位单元。 双端口6T SRAM单元使用独立的字线和位线,使得可以独立地访问位单元的真实侧和假侧。 单端读取允许内存系统同时处理两个独立的读操作。 通过调整在执行写入时提供给存储单元的VDD电源电压,使得可以使用单个字线和位线对将逻辑“0”或逻辑“1”写入到 位单元格。 因此,具有电压辅助的单端操作允许存储器系统处理两个并行写入操作。 可以将写缓冲器添加到存储器系统以防止冲突,从而在单个周期中实现并行读取操作和写入操作。
    • 4. 发明申请
    • Methods and Apparatus for Designing and Constructing Dual Write Memory Circuits with Voltage Assist
    • 用于设计和构造具有电压辅助的双写存储器电路的方法和装置
    • US20150003148A1
    • 2015-01-01
    • US14274518
    • 2014-05-09
    • Sundar IyerShang-Tse ChuangThu Nguyen
    • Sundar IyerShang-Tse ChuangThu Nguyen
    • G11C11/419
    • G11C11/419G11C8/16G11C11/412G11C11/413
    • Static random access memory (SRAM) circuits are used in most digital integrated circuits to store representations of data bits. To handle multiple concurrent memory requests, an efficient dual-port six transistor (6T) SRAM bit cell is proposed. The dual-port 6T SRAM cell uses independent word lines and bit lines such that the true/data side and the false/data-complement side of the SRAM bit cell may be accessed independently. Single-ended reads allow the two independent word lines and bit lines to handle two independent read operations in a single cycle using spatial domain multiplexing. Single-ended writes are enabled by adjusting the VDD power voltage supplied to a memory cell when writes are performed such that a single word line and bit line pair can be used write either a logical “0” or logical “1” into either side of the SRAM bit cell. Thus, spatial domain multiplexing with a voltage assist allows single-ended writes to handle two independent write operations to be handled in a single cycle. A write buffer may be added to the memory system to prevent conflicts and thus enable concurrent read operations and write operations in a single cycle.
    • 在大多数数字集成电路中使用静态随机存取存储器(SRAM)电路来存储数据位的表示。 为了处理多个并发存储器请求,提出了一种高效的双端口六晶体管(6T)SRAM位单元。 双端口6T SRAM单元使用独立的字线和位线,使得可以独立地访问SRAM位单元的真/数据侧和伪/数据补码侧。 单端读取允许两个独立的字线和位线使用空间域复用在单个周期中处理两个独立的读操作。 通过调整在执行写入时提供给存储单元的VDD电源电压,使得可以使用单个字线和位线对将逻辑“0”或逻辑“1”写入到 SRAM位单元。 因此,具有电压辅助的空间域复用允许单端写入来处理在单个周期中处理的两个独立的写操作。 可以将写缓冲器添加到存储器系统以防止冲突,从而在单个周期中实现并行读取操作和写入操作。
    • 7. 发明申请
    • Methods and Apparatus for Designing and Constructing High-Speed Memory Circuits
    • 用于设计和构建高速存储器电路的方法和装置
    • US20140104960A1
    • 2014-04-17
    • US13651698
    • 2012-10-15
    • Sundar IyerShang-Tse ChuangThu NguyenSanjeev JoshiAdam Kablanian
    • Sundar IyerShang-Tse ChuangThu NguyenSanjeev JoshiAdam Kablanian
    • G11C7/12G11C7/10
    • G11C7/12G11C7/1042G11C8/16G11C11/419
    • Static random access memory (SRAM) circuits are used in most digital integrated circuits to store digital data bits. SRAM memory circuits are generally read by decoding an address, reading from an addressed memory cell using a set of bit lines, outputting data from the read memory cell, and precharging the bit lines for a subsequent memory cycle. To handle memory operations faster, a bit line multiplexing system is proposed. Two sets of bit lines are coupled to each memory cell and each set of bit lines are used for memory operations in alternating memory cycles. During a first memory cycle, a first set of bit lines accesses the memory array while precharging a second set of bit lines. Then during a second memory cycle following the first memory cycle, the first set of bit lines are precharged while the second set of bit lines accesses the memory array to read data.
    • 在大多数数字集成电路中使用静态随机存取存储器(SRAM)电路来存储数字数据位。 通常通过对地址进行解码来读取SRAM存储器电路,使用一组位线从寻址的存储器单元读取,从读取的存储器单元输出数据,并为后续存储器周期预充电位线。 为了更快地处理存储器操作,提出了一种位线复用系统。 两组位线耦合到每个存储器单元,并且每组位线用于交替存储器周期中的存储器操作。 在第一存储器周期期间,第一组位线在对第二组位线进行预充电的同时访问存储器阵列。 然后在第一存储器周期之后的第二存储器周期期间,第一组位线被预充电,而第二组位线访问存储器阵列以读取数据。
    • 8. 发明申请
    • Methods and Apparatus for Designing and Constructing Multi-port Memory Circuits with Voltage Assist
    • 用于设计和构造具有电压辅助的多端口存储器电路的方法和装置
    • US20130242677A1
    • 2013-09-19
    • US13421704
    • 2012-03-15
    • Sundar IyerShang-Tse ChuangThu Nguyen
    • Sundar IyerShang-Tse ChuangThu Nguyen
    • G11C8/16G11C7/00
    • G11C11/419G11C8/16G11C11/412G11C11/413
    • To handle multiple concurrent memory requests, a dual-port six transistor (6T) SRAM bit cell is proposed. The dual-port 6T SRAM cell uses independent word lines and bit lines such that the true side and the false side of the bit cell may be accessed independently. Single-ended reads allow the memory system to handle two independent read operations concurrently. Single-ended writes are enabled by adjusting the VDD power voltage supplied to a memory cell when writes are performed such that a single word line and bit line pair can be used write either a logical “0” or logical “1” into either side of the bit cell. Thus, single-ended operation with a voltage assist allows a memory system to handle two concurrent write operations. A write buffer may be added to the memory system to prevent conflicts and thus enable concurrent read operations and write operations in a single cycle.
    • 为了处理多个并发存储器请求,提出了一个双端口六晶体管(6T)SRAM位单元。 双端口6T SRAM单元使用独立的字线和位线,使得可以独立地访问位单元的真实侧和假侧。 单端读取允许内存系统同时处理两个独立的读操作。 通过调整在执行写入时提供给存储单元的VDD电源电压,使得可以使用单个字线和位线对将逻辑“0”或逻辑“1”写入到 位单元格。 因此,具有电压辅助的单端操作允许存储器系统处理两个并行写入操作。 可以将写缓冲器添加到存储器系统以防止冲突,从而在单个周期中实现并行读取操作和写入操作。