Power savings via selection of SRAM power source
    1.
    发明授权
    Power savings via selection of SRAM power source 有权
    通过选择SRAM电源节约能源

    公开(公告)号:US09484115B1

    公开(公告)日:2016-11-01

    申请号:US14711712

    申请日:2015-05-13

    Abstract: A subsystem configured to select the power supply to a static random access memory cell compares the level of a dedicated memory supply voltage to the primary system supply voltage. The subsystem then switches the primary system supply to the SRAM cell when the system voltage is higher than the memory supply voltage with some margin. When the system voltage is lower than the memory supply voltage, with margin, the subsystem switches the memory supply to the SRAM cell. When the system voltage is comparable to the memory supply, the subsystem switches the system voltage to the SRAM cell if performance is a prioritized consideration, but switches the memory supply to the SRAM cell if power reduction is a prioritized consideration. In this manner, the system achieves optimum performance without incurring steady state power losses and avoids timing issues in accessing memory.

    Abstract translation: 被配置为选择对静态随机存取存储器单元的电源的子系统将专用存储器电源电压的电平与主系统电源电压进行比较。 当系统电压高于具有一定余量的存储器电源电压时,子系统将主系统电源切换到SRAM单元。 当系统电压低于存储器电源电压时,子系统将存储器电源切换到SRAM单元。 当系统电压与存储器电源相当时,如果性能是优先考虑的话,子系统将系统电压切换到SRAM单元,但如果降低功耗是优先考虑的话,将存储器电源切换到SRAM单元。 以这种方式,系统实现最佳性能而不会导致稳态功率损耗,并避免访问存储器时的定时问题。

    Write assist scheme for low power SRAM

    公开(公告)号:US09640249B2

    公开(公告)日:2017-05-02

    申请号:US14282809

    申请日:2014-05-20

    CPC classification number: G11C11/419 G11C5/147

    Abstract: A write-assist memory includes a memory supply voltage and a column of SRAM cells that is controlled by a pair of bit lines, during a write operation. Additionally, the write-assist memory includes a write-assist unit that is coupled to the memory supply voltage and the column of SRAM cells and has a separable conductive line located between the pair of bit lines that provides a collapsible SRAM supply voltage to the column of SRAM cells based on a capacitive coupling of a control signal in the pair of bit lines, during the write operation. A method of operating a write-assist memory is also provided.

    FLAT PANEL ELECTRONIC DEVICE AND AUDIO PLAYING APPARATUS THEREOF
    3.
    发明申请
    FLAT PANEL ELECTRONIC DEVICE AND AUDIO PLAYING APPARATUS THEREOF 有权
    平板电子设备及其音乐播放器

    公开(公告)号:US20140219482A1

    公开(公告)日:2014-08-07

    申请号:US13864422

    申请日:2013-04-17

    CPC classification number: H04R5/02 H04R5/04 H04R2420/01 H04R2499/15

    Abstract: A flat panel electronic device and an audio playing apparatus thereof are provided. The audio playing apparatus comprises an audio generator, a plurality of speakers, a sensor and a controller. The audio generator is operable to generate a left channel audio and a right channel audio. The plurality of speakers are configured such that at least one pair of speakers is symmetrically disposed at a left side and a right side of the flat panel electronic device no matter how the flat panel electronic device is placed. The sensor is operable to detect a placed state of the flat panel electronic device in the installed state. The controller is operable to receive a detecting signal from the sensor so as to control the at least one pair of speakers to play the left channel audio and the right channel audio correspondingly according to the placed state of the flat panel electronic device.

    Abstract translation: 提供一种平板电子装置及其音频播放装置。 音频播放装置包括音频发生器,多个扬声器,传感器和控制器。 音频发生器可操作以产生左声道音频和右声道音频。 多个扬声器被配置为使得至少一对扬声器对称地设置在平板电子设备的左侧和右侧,而不管平板电子设备如何放置。 传感器可操作以在安装状态下检测平板电子设备的放置状态。 控制器可操作以从传感器接收检测信号,以根据平板电子设备的放置状态来控制至少一对扬声器来对应地播放左声道音频和右声道音频。

    Flat panel electronic device and audio playing apparatus thereof
    5.
    发明授权
    Flat panel electronic device and audio playing apparatus thereof 有权
    平板电子装置及其音频播放装置

    公开(公告)号:US09215528B2

    公开(公告)日:2015-12-15

    申请号:US13864422

    申请日:2013-04-17

    CPC classification number: H04R5/02 H04R5/04 H04R2420/01 H04R2499/15

    Abstract: A flat panel electronic device and an audio playing apparatus thereof are provided. The audio playing apparatus comprises an audio generator, a plurality of speakers, a sensor and a controller. The audio generator is operable to generate a left channel audio and a right channel audio. The plurality of speakers are configured such that at least one pair of speakers is symmetrically disposed at a left side and a right side of the flat panel electronic device no matter how the flat panel electronic device is placed. The sensor is operable to detect a placed state of the flat panel electronic device in the installed state. The controller is operable to receive a detecting signal from the sensor so as to control the at least one pair of speakers to play the left channel audio and the right channel audio correspondingly according to the placed state of the flat panel electronic device.

    Abstract translation: 提供一种平板电子装置及其音频播放装置。 音频播放装置包括音频发生器,多个扬声器,传感器和控制器。 音频发生器可操作以产生左声道音频和右声道音频。 多个扬声器被配置为使得至少一对扬声器对称地设置在平板电子设备的左侧和右侧,而不管平板电子设备如何放置。 传感器可操作以在安装状态下检测平板电子设备的放置状态。 控制器可操作以从传感器接收检测信号,以根据平板电子设备的放置状态来控制至少一对扬声器来对应地播放左声道音频和右声道音频。

    WRITE ASSIST SCHEME FOR LOW POWER SRAM
    7.
    发明申请
    WRITE ASSIST SCHEME FOR LOW POWER SRAM 有权
    低功耗SRAM的写配置方案

    公开(公告)号:US20150235695A1

    公开(公告)日:2015-08-20

    申请号:US14282809

    申请日:2014-05-20

    CPC classification number: G11C11/419 G11C5/147

    Abstract: A write-assist memory includes a memory supply voltage and a column of SRAM cells that is controlled by a pair of bit lines, during a write operation. Additionally, the write-assist memory includes a write-assist unit that is coupled to the memory supply voltage and the column of SRAM cells and has a separable conductive line located between the pair of bit lines that provides a collapsible SRAM supply voltage to the column of SRAM cells based on a capacitive coupling of a control signal in the pair of bit lines, during the write operation. A method of operating a write-assist memory is also provided.

    Abstract translation: 在写操作期间,写辅助存储器包括由一对位线控制的存储器电源电压和一列SRAM单元。 另外,写辅助存储器包括写辅助单元,其耦合到存储器电源电压和SRAM单元列,并且具有位于该对位线之间的可分离导线,该可分离导线向列提供可折叠的SRAM供电电压 在写操作期间基于位线对中的控制信号的电容耦合的SRAM单元。 还提供了一种操作写辅助存储器的方法。

    PSEUDO-DIFFERENTIAL READ SCHEME FOR DUAL PORT RAM
    8.
    发明申请
    PSEUDO-DIFFERENTIAL READ SCHEME FOR DUAL PORT RAM 审中-公开
    双端口RAM的PSEUDO-差分读取方案

    公开(公告)号:US20150235681A1

    公开(公告)日:2015-08-20

    申请号:US14279796

    申请日:2014-05-16

    CPC classification number: G11C11/419 G11C8/16 G11C11/412

    Abstract: A memory read system includes a memory column having a plurality of dual port memory cells that are controlled by separate read word lines and a read bit line structure organized into upper and lower read bit line portions. Additionally, the memory read system also includes a pseudo-differential memory read unit coupled to the read bit line structure, wherein the upper and lower read bit line portions respectively control corresponding upper and lower local bit lines to provide a global bit line for the memory column. A method of reading a memory is also included.

    Abstract translation: 存储器读取系统包括具有多个双端口存储器单元的存储器列,该多个双端口存储器单元由分离的读取字线和被组织为上部和下部读取位线部分的读取位线结构控制。 此外,存储器读取系统还包括耦合到读取位线结构的伪差分存储器读取单元,其中上部和下部读取位线部分分别控制相应的上部和下部本地位线,以提供用于存储器的全局位线 柱。 还包括读取存储器的方法。

    VIRTUAL KEYBOARD WITH ADAPTIVE CHARACTER RECOGNITION ZONES
    9.
    发明申请
    VIRTUAL KEYBOARD WITH ADAPTIVE CHARACTER RECOGNITION ZONES 有权
    具有自适应字符识别区域的虚拟键盘

    公开(公告)号:US20150128083A1

    公开(公告)日:2015-05-07

    申请号:US14528265

    申请日:2014-10-30

    CPC classification number: G06F3/04886 G06F3/0237 G06F17/30687

    Abstract: A virtual keyboard with dynamically adjusted recognition zones for predicted user-intended characters. When a user interaction with the virtual keyboard is received on the virtual keyboard, a character in a recognition zone encompassing the detected interaction location is selected as the current input character. Characters likely to be the next input character are predicted based on the current input character. The recognition zones of the predicted next input characters are adjusted to be larger than their original sizes.

    Abstract translation: 具有动态调整的识别区域的虚拟键盘,用于预测的用户想要的字符。 当在虚拟键盘上接收到与虚拟键盘的用户交互时,包含检测到的交互位置的识别区域中的字符被选择为当前输入字符。 基于当前输入字符预测可能是下一个输入字符的字符。 将预测的下一个输入字符的识别区域调整为大于其原始大小。

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