公开(公告)号：US06513081B2

公开(公告)日：2003-01-28

申请号：US09916493

申请日：2001-07-26

Applicant: Michael Farmwald ,  Mark Horowitz

Inventor： Michael Farmwald ,  Mark Horowitz

IPC: G06F1200

CPC classification number: G11C7/1066 ,  G06F11/006 ,  G06F11/1048 ,  G06F12/0215 ,  G06F12/0661 ,  G06F12/0684 ,  G06F13/1605 ,  G06F13/161 ,  G06F13/1678 ,  G06F13/1689 ,  G06F13/1694 ,  G06F13/376 ,  G06F13/4239 ,  G11C5/00 ,  G11C5/04 ,  G11C5/06 ,  G11C5/063 ,  G11C5/066 ,  G11C7/1006 ,  G11C7/1012 ,  G11C7/1045 ,  G11C7/1051 ,  G11C7/1057 ,  G11C7/1069 ,  G11C7/1072 ,  G11C7/1078 ,  G11C7/1084 ,  G11C7/22 ,  G11C7/222 ,  G11C7/225 ,  G11C8/00 ,  G11C11/4076 ,  G11C11/4096 ,  G11C29/88 ,  G11C2207/105 ,  G11C2207/108 ,  Y02D10/13 ,  Y02D10/14 ,  Y02D10/151

Abstract: A memory device and a method of operation of the memory device. The memory device includes an array of memory cells and a reference voltage input terminal to receive an external reference voltage. In addition, the memory device includes an input receiver, coupled to the reference voltage input terminal, to sample data from an external signal line using the external reference voltage.

Abstract translation: 存储装置和存储装置的操作方法。 存储器件包括存储单元阵列和用于接收外部参考电压的参考电压输入端子。 此外，存储器件包括耦合到参考电压输入端的输入接收器，以使用外部参考电压从外部信号线采样数据。

公开(公告)号：US06260097B1

公开(公告)日：2001-07-10

申请号：US09514872

申请日：2000-02-28

Applicant: Michael Farmwald ,  Mark Horowitz

Inventor： Michael Farmwald ,  Mark Horowitz

IPC: G06F1300

CPC classification number: G11C7/1066 ,  G06F11/006 ,  G06F11/1048 ,  G06F12/0215 ,  G06F12/0661 ,  G06F12/0684 ,  G06F13/1605 ,  G06F13/161 ,  G06F13/1678 ,  G06F13/1689 ,  G06F13/1694 ,  G06F13/376 ,  G06F13/4239 ,  G11C5/00 ,  G11C5/04 ,  G11C5/06 ,  G11C5/063 ,  G11C5/066 ,  G11C7/1006 ,  G11C7/1012 ,  G11C7/1045 ,  G11C7/1051 ,  G11C7/1057 ,  G11C7/1069 ,  G11C7/1072 ,  G11C7/1078 ,  G11C7/1084 ,  G11C7/22 ,  G11C7/222 ,  G11C7/225 ,  G11C8/00 ,  G11C11/4076 ,  G11C11/4096 ,  G11C29/88 ,  G11C2207/105 ,  G11C2207/108 ,  Y02D10/13 ,  Y02D10/14 ,  Y02D10/151

Abstract: A method of controlling a synchronous memory device comprising issuing a write request to the memory device, wherein in response to the write request, the memory device samples first and second portions of data. The first portion of data is provided to the memory device synchronously with respect to a rising edge transition of an external clock signal. A second portion of data is provided to the memory device synchronously with respect to a falling edge transition of the external clock signal. A memory controller for controlling a synchronous memory device comprises output driver circuitry to output data. The output driver circuitry outputs a first portion of data in response to a rising edge transition of the first external clock signal. In addition, the output driver circuitry outputs a second portion of data in response to a falling edge transition of the first external clock signal.

Abstract translation: 一种控制同步存储器件的方法，包括向存储器件发出写入请求，其中响应于写入请求，存储器件采样数据的第一和第二部分。 数据的第一部分相对于外部时钟信号的上升沿转换被同步地提供给存储器件。 数据的第二部分相对于外部时钟信号的下降沿转换被同步地提供给存储器件。 用于控制同步存储器件的存储器控​​制器包括用于输出数据的输出驱动器电路。 输出驱动器电路响应于第一外部时钟信号的上升沿转变而输出数据的第一部分。 此外，输出驱动器电路响应于第一外部时钟信号的下降沿转变而输出数据的第二部分。

公开(公告)号：US6034918A

公开(公告)日：2000-03-07

申请号：US252997

申请日：1999-02-19

Applicant: Michael Farmwald ,  Mark Horowitz

Inventor： Michael Farmwald ,  Mark Horowitz

IPC: G06F1/10 ,  G06F11/00 ,  G06F11/10 ,  G06F12/00 ,  G06F12/02 ,  G06F12/06 ,  G06F13/16 ,  G06F13/376 ,  G11C5/00 ,  G11C5/06 ,  G11C7/10 ,  G11C7/22 ,  G11C8/00 ,  G11C11/401 ,  G11C11/407 ,  G11C11/4076 ,  G11C11/409 ,  G11C11/4096 ,  G11C29/00

CPC classification number: G11C7/1066 ,  G06F11/006 ,  G06F12/0215 ,  G06F12/0661 ,  G06F12/0684 ,  G06F13/1605 ,  G06F13/161 ,  G06F13/1678 ,  G06F13/1689 ,  G06F13/1694 ,  G06F13/376 ,  G06F13/4239 ,  G11C11/4076 ,  G11C11/4096 ,  G11C29/88 ,  G11C5/00 ,  G11C5/04 ,  G11C5/06 ,  G11C5/063 ,  G11C5/066 ,  G11C7/1006 ,  G11C7/1012 ,  G11C7/1045 ,  G11C7/1051 ,  G11C7/1057 ,  G11C7/1069 ,  G11C7/1072 ,  G11C7/1078 ,  G11C7/1084 ,  G11C7/22 ,  G11C7/222 ,  G11C7/225 ,  G11C8/00 ,  G06F11/1048 ,  G11C2207/105 ,  G11C2207/108 ,  Y02B60/1225 ,  Y02B60/1228 ,  Y02B60/1235

Abstract: A method of controlling a memory device is disclosed wherein the memory device includes a plurality of memory cells. The method comprises providing first block size information to the memory device, wherein the first block size information defines a first amount of data to be output onto a bus in response to a read request. The method further includes issuing a first read request to the memory device, wherein in response to the first read request, the memory device outputs the first amount of data corresponding to the first block size information onto the bus synchronously with respect to an external clock signal. In one preferred embodiment, the method may include providing a code which is representative of a number of clock cycles of the first and second external clock which are to transpire before data is output by the memory device onto the bus. The memory device stores the code in a programmable register on the memory device. In this preferred embodiment, the first amount of data corresponding to the first block size information is output after the number of clock cycles of the external clock transpire.

Abstract translation: 公开了一种控制存储器件的方法，其中存储器件包括多个存储单元。 该方法包括向存储器设备提供第一块大小信息，其中响应于读请求，第一块大小信息定义要输出到总线上的第一数据量。 该方法还包括向存储器件发出第一读取请求，其中响应于第一读取请求，存储器件相对于外部时钟信号将与第一块大小信息相对应的第一数据量同步地输出到总线上 。 在一个优选实施例中，该方法可以包括提供代表在数据由存储器件输出到总线上之前要发出的第一和第二外部时钟的时钟周期的数量的代码。 存储器件将代码存储在存储器件上的可编程寄存器中。 在该优选实施例中，在外部时钟的时钟周期数出现之后输出对应于第一块大小信息的第一数据量。

公开(公告)号：US5499385A

公开(公告)日：1996-03-12

申请号：US849212

申请日：1992-03-05

Applicant: Michael Farmwald ,  Mark Horowitz

Inventor： Michael Farmwald ,  Mark Horowitz

IPC: G06F1/10 ,  G06F11/00 ,  G06F11/10 ,  G06F12/00 ,  G06F12/02 ,  G06F12/06 ,  G06F13/16 ,  G06F13/376 ,  G11C5/00 ,  G11C5/06 ,  G11C7/10 ,  G11C7/22 ,  G11C8/00 ,  G11C11/401 ,  G11C11/407 ,  G11C11/4076 ,  G11C11/409 ,  G11C11/4096 ,  G11C29/00 ,  G06F13/00

CPC classification number: G11C7/1066 ,  G06F11/006 ,  G06F12/0215 ,  G06F12/0661 ,  G06F12/0684 ,  G06F13/1605 ,  G06F13/161 ,  G06F13/1678 ,  G06F13/1689 ,  G06F13/1694 ,  G06F13/376 ,  G06F13/4239 ,  G11C11/4076 ,  G11C11/4096 ,  G11C29/88 ,  G11C5/00 ,  G11C5/04 ,  G11C5/06 ,  G11C5/063 ,  G11C5/066 ,  G11C7/1006 ,  G11C7/1012 ,  G11C7/1045 ,  G11C7/1051 ,  G11C7/1057 ,  G11C7/1069 ,  G11C7/1072 ,  G11C7/1078 ,  G11C7/1084 ,  G11C7/22 ,  G11C7/222 ,  G11C7/225 ,  G11C8/00 ,  G06F11/1048 ,  G11C2207/105 ,  G11C2207/108 ,  Y02B60/1225 ,  Y02B60/1228 ,  Y02B60/1235

Abstract: A method of transmitting digital information to a memory circuit of a plurality of memory circuits of a computer system through a multiline bus of the computer system is described. The plurality of memory circuits are coupled together via the multiline bus. The multiline bus has a total number of lines less than a total number of bits in any single address. A first word of a packet is transmitted onto the multiline bus. A second word of the packet is then transmitted onto the multiline bus. The second word of the packet includes a first portion of an address. A third word of the packet is transmitted onto the multiline bus. The third word of the packet includes a second portion of the address.

Abstract translation: 描述了通过计算机系统的多行总线将数字信息发送到计算机系统的多个存储器电路的存储器电路的方法。 多个存储器电路通过多行总线耦合在一起。 多行总线的总线数小于任何单个地址中的总位数。 分组的第一个字被传送到多行总线上。 然后将分组的第二个字传送到多行总线上。 分组的第二个单词包括地址的第一部分。 分组的第三个字被发送到多行总线上。 分组的第三个字包含地址的第二部分。

公开(公告)号：US5408129A

公开(公告)日：1995-04-18

申请号：US183573

申请日：1994-01-18

Applicant: Michael Farmwald ,  Mark Horowitz

Inventor： Michael Farmwald ,  Mark Horowitz

IPC: G06F1/10 ,  G06F11/00 ,  G06F11/10 ,  G06F12/00 ,  G06F12/02 ,  G06F12/06 ,  G06F13/16 ,  G06F13/376 ,  G11C5/00 ,  G11C5/06 ,  G11C7/10 ,  G11C7/22 ,  G11C8/00 ,  G11C11/401 ,  G11C11/407 ,  G11C11/4076 ,  G11C11/409 ,  G11C11/4096 ,  G11C29/00 ,  H01L29/48 ,  H01L29/44 ,  H01L29/52 ,  H01L29/60

CPC classification number: G11C7/1066 ,  G06F11/006 ,  G06F12/0215 ,  G06F12/0661 ,  G06F12/0684 ,  G06F13/1605 ,  G06F13/161 ,  G06F13/1678 ,  G06F13/1689 ,  G06F13/1694 ,  G06F13/376 ,  G06F13/4239 ,  G11C11/4076 ,  G11C11/4096 ,  G11C29/88 ,  G11C5/00 ,  G11C5/04 ,  G11C5/06 ,  G11C5/063 ,  G11C5/066 ,  G11C7/1006 ,  G11C7/1012 ,  G11C7/1045 ,  G11C7/1051 ,  G11C7/1057 ,  G11C7/1069 ,  G11C7/1072 ,  G11C7/1078 ,  G11C7/1084 ,  G11C7/22 ,  G11C7/222 ,  G11C7/225 ,  G11C8/00 ,  G06F11/1048 ,  G11C2207/105 ,  G11C2207/108 ,  Y02B60/1225 ,  Y02B60/1228 ,  Y02B60/1235

Abstract: The present invention includes a memory subsystem comprising at least two semiconductor devices, including at least one memory device, connected to a bus, where the bus includes a plurality of bus lines for carrying substantially all address, data and control information needed by said memory devices, where the control information includes device-select information and the bus has substantially fewer bus lines than the number of bits in a single address, and the bus carries device-select information without the need for separate device-select lines connected directly to individual devices.The present invention also includes a protocol for master and slave devices to communicate on the bus and for registers in each device to differentiate each device and allow bus requests to be directed to a single or to all devices. The present invention includes modifications to prior-art devices to allow them to implement the new features of this invention. In a preferred implementation, 8 bus data lines and an AddressValid bus line carry address, data and control information for memory addresses up to 40 bits wide.

Abstract translation: 本发明包括一个包括至少两个半导体器件的存储器子系统，包括连接到总线的至少一个存储器件，其中总线包括用于承载所有存储器件所需的所有地址，数据和控制信息的多条总线 ，其中控制信息包括设备选择信息，并且总线具有比单个地址中的位数少得多的总线，并且总线承载设备选择信息，而不需要直接连接到各个设备的单独的设备选择线 。 本发明还包括用于主设备和从设备在总线上通信的协议，以及用于每个设备中的寄存器以区分每个设备并允许总线请求被引导到单个或所有设备的协议。 本发明包括对现有技术设备的修改，以允许它们实现本发明的新特征。 在一个优选实施方式中，8个总线数据线和一个AddressValid总线携带地址，数据和控制信息，用于高达40位宽的存储器地址。

公开(公告)号：US08892619B2

公开(公告)日：2014-11-18

申请号：US13556710

申请日：2012-07-24

Applicant: Sameh Galal ,  Mark Horowitz

Inventor： Sameh Galal ,  Mark Horowitz

IPC: G06F7/485 ,  G06F7/487

CPC classification number: G06F7/5443 ,  G06F7/483 ,  G06F7/49947

Abstract: A floating-point fused multiply-add (FMA) unit embodied in an integrated circuit includes a multiplier circuit cascaded with an adder circuit to produce a result A*C+B. To decrease latency, the FMA includes accumulation bypass circuits forwarding an unrounded result of the adder to inputs of the close path and the far path circuits of the adder, and forwarding an exponent result in carry save format to an input of the exponent difference circuit. Also included in the FMA is a multiply-add bypass circuit forwarding the unrounded result to the inputs of the multiplier circuit. The adder circuit includes an exponent difference circuit implemented in parallel with the multiplier circuit; a close path circuit implemented after the exponent difference circuit; and a far path circuit implemented after the exponent difference circuit.

公开(公告)号：US20090097338A1

公开(公告)日：2009-04-16

申请号：US12258285

申请日：2008-10-24

Applicant: Carl Werner ,  Mark Horowitz ,  Pak Chau ,  Scott Best ,  Stefanos Sidiropoulos

Inventor： Carl Werner ,  Mark Horowitz ,  Pak Chau ,  Scott Best ,  Stefanos Sidiropoulos

IPC: G11C7/00

CPC classification number: H04L25/4917 ,  G06F13/1678 ,  G06F13/4068 ,  G11C7/10 ,  G11C7/1051 ,  G11C7/1057 ,  G11C7/106 ,  G11C7/1072 ,  G11C7/1078 ,  G11C7/1084 ,  G11C7/1087 ,  G11C7/22 ,  G11C8/10 ,  G11C11/56 ,  G11C27/02 ,  G11C2207/108 ,  H04L7/0331 ,  H04L7/0332 ,  H04L25/0272 ,  H04L25/0282 ,  H04L25/0296 ,  H04L25/0298 ,  H04L25/03006 ,  H04L25/03057 ,  H04L25/08 ,  H04L25/4902

Abstract: A memory device includes a receiver to receive an input data signal and to create an output signal corresponding to the present received data signal and a voltage representative of a signal sampled earlier in time.

Abstract translation: 存储器件包括接收器，用于接收输入数据信号并产生对应于当前接收数据信号的输出信号和代表在时间上较早采样的信号的电压。

公开(公告)号：US20080052440A1

公开(公告)日：2008-02-28

申请号：US11929974

申请日：2007-10-30

Applicant: Mark Horowitz ,  Richard Barth ,  Craig Hampel ,  Alfredo Moncavo ,  Kevin Donnelly ,  Jared Zerbe

Inventor： Mark Horowitz ,  Richard Barth ,  Craig Hampel ,  Alfredo Moncavo ,  Kevin Donnelly ,  Jared Zerbe

IPC: G06F13/14

CPC classification number: G06F13/4291 ,  G06F3/061 ,  G06F3/0611 ,  G06F3/0619 ,  G06F3/0658 ,  G06F3/0661 ,  G06F3/0679 ,  G06F3/0688 ,  G06F12/0246 ,  G06F12/1081 ,  G06F13/102 ,  G06F13/1689 ,  G06F13/364 ,  G06F13/4072 ,  G06F13/4086 ,  G06F13/4234 ,  G06F13/4243 ,  G06F2206/1014 ,  G06F2212/7201 ,  G11C5/04 ,  G11C5/063 ,  G11C7/1048 ,  G11C7/1072 ,  G11C7/22 ,  G11C7/222 ,  G11C16/32 ,  G11C19/00 ,  H03K19/00384 ,  H03K19/018585

Abstract: An integrated circuit device includes an output driver, a first register to store a value representative of a drive strength setting of the output driver, wherein the value is determined based on information stored in a supplemental memory device external to the integrated circuit memory device, and a transmitter circuit configurable to receive the value representative of a drive strength setting of the output driver. The output driver is configurable to output data synchronously with respect to an external clock signal.

Abstract translation: 集成电路装置包括输出驱动器，第一寄存器，用于存储代表输出驱动器的驱动强度设置的值，其中该值基于存储在集成电路存储器件外部的补充存储器件中的信息确定，以及 发射机电路可配置为接收代表输出驱动器的驱动强度设置的值。 输出驱动器可配置为相对于外部时钟信号同步输出数据。

公开(公告)号：US20070297520A1

公开(公告)日：2007-12-27

申请号：US11895415

申请日：2007-08-23

Applicant: Andrew Ho ,  Vladimir Stojanovic ,  Fred Chen ,  Elad Alon ,  Mark Horowitz

Inventor： Andrew Ho ,  Vladimir Stojanovic ,  Fred Chen ,  Elad Alon ,  Mark Horowitz

IPC: H04B1/10

CPC classification number: H04L47/10 ,  H04L5/20 ,  H04L25/0276

Abstract: Described are communication systems that convey differential and common-mode signals over the same differential channel. Noise-tolerant communication schemes use low-amplitude common-mode signals that are easily rejected by differential receivers, thus allowing for very high differential data rates. Some embodiments employ the common-mode signals to transmit backchannel signals for adjusting the characteristics of the differential transmitter. Backchannel control signals are effectively conveyed even if the forward channel transmitter is so maladjusted that the received differential data is unrecognizable. Systems in accordance with the above-described embodiments obtain these advantages without additional pins or communications channels, and are compatible with both AC-coupled and DC-coupled communications channels. Data coding schemes and corresponding data recovery circuits eliminate the need for complex, high-speed CDR circuits.

公开(公告)号：US07298807B2

公开(公告)日：2007-11-20

申请号：US10672853

申请日：2003-09-26

Applicant: Jared Zerbe ,  Mark Horowitz ,  Carl Werner

Inventor： Jared Zerbe ,  Mark Horowitz ,  Carl Werner

IPC: H04L7/00

CPC classification number: G11C7/222 ,  G11C7/22 ,  G11C2207/2254 ,  H03L7/07 ,  H03L7/087 ,  H03L7/091 ,  H04L7/033

Abstract: A circuit, apparatus and method for maximizing system margins by adjusting a duty-cycle of a clock signal in a receive circuit to whatever duty-cycle is optimal for the particular incoming serial data, rather than the typical 50% duty-cycle, is provided in embodiments of the present invention. A receive circuit, including duty-cycle-correction logic, is included in a double-data rate communication apparatus having a transmit circuit transmitting serial data having duty-cycle distortion. A receive circuit includes a first and second sampler to obtain data and edge values of an incoming serial data responsive to a data and edge clock, respectively. A duty-cycle-correction logic generates a duty-cycle-correction signal to a duty-cycle clock integrator that adjusts the edge clock signals while maintaining quadrature to the data clocks. In an embodiment of the present invention, a duty-cycle-correction logic includes an evaluator circuit to generate an up or down signal responsive to the data and/or edge values. In a further embodiment of the present invention, an evaluator circuit is coupled to a counter and a DAC to generate a duty-cycle-correction signal to the duty-cycle clock integrator. A digital filter or coding scheme is also used to reduce the likelihood of misinterpreting malevolent incoming serial data for duty-cycle distortion in an embodiment of the present invention.

Abstract translation: 通过将接收电路中的时钟信号的占空比调整到任何占空比来最大化系统裕度的电路，装置和方法对于特定的输入串行数据而言不是典型的50％占空比是最佳的 在本发明的实施例中。 包括占空比校正逻辑的接收电路被包括在具有发送电路的双数据速率通信装置中，该发送电路发送具有占空比失真的串行数据。 接收电路包括第一和第二采样器，用于分别响应于数据和边沿时钟获得输入串行数据的数据和边缘值。 占空比校正逻辑产生占空比校正信号到占空比时钟积分器，该占空比校正信号调整边沿时钟信号同时保持与数据时钟的正交。 在本发明的实施例中，占空比校正逻辑包括响应于数据和/或边缘值产生上升或下降信号的评估器电路。 在本发明的另一实施例中，评估器电路耦合到计数器和DAC，以向占空比时钟积分器产生占空比校正信号。 数字滤波器或编码方案也用于在本发明的一个实施例中减少对恶意输入串行数据进行占空比失真的误解的可能性。