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    • 93. 发明授权
    • 백점 결함 보완 회로 및 이 백점 결함 보완 회로를 이용한 이미지 센서
    • 백점결함보완회로및이백점결함보완회로를이용한이미지센서
    • KR100874935B1
    • 2008-12-19
    • KR1020030007674
    • 2003-02-07
    • 후지쯔 세미컨덕터 가부시키가이샤
    • 코쿠보아사오후나코시쥰야마모토카츠요시
    • H04N5/367
    • H04N5/3675
    • A circuit for correction of white pixel defects capable of complementing white pixel faults without using a storage device for holding white pixel fault spots, and an image sensor using the circuit for correction of white pixel defects. Pixels constituting a pixel section are sequentially subjected to white pixel fault complementation process. A nearby pixel data holding section acquires pixel data from a readout circuit and holds the data. A comparison-determination section compares lightness of a target pixel with that of a nearby pixel and determines, based on the comparison result, whether or not the target pixel is associated with a white pixel fault having a lightness higher than that of the nearby pixel by a predetermined value or more. When it is judged by the comparison-determination section that the target pixel is associated with a white pixel fault, a complementary calculation section performs a complementary calculation by using the pixel data of the target and nearby pixels held by the nearby pixel data holding section, to generate complemented data.
    • 一种用于校正白色像素缺陷的电路,该电路能够补充白色像素故障,而不使用用于保持白色像素故障点的存储设备,以及使用该电路来校正白色像素缺陷的图像传感器。 构成像素部分的像素顺序经受白像素故障补充处理。 附近的像素数据保持部分从读出电路获取像素数据并保存该数据。 比较确定部分比较目标像素的亮度与邻近像素的亮度,并且基于比较结果确定目标像素是否与具有亮度高于邻近像素的亮度的白色像素故障相关联 预定值或更多。 当由比较确定部分判断目标像素与白像素故障相关联时,互补计算部分通过使用由邻近像素数据保持部分保持的目标和邻近像素的像素数据来执行互补计算, 生成补充数据。
    • 94. 发明公开
    • 필터 회로 및 반도체 장치
    • 滤波电路和半导体器件
    • KR1020080105999A
    • 2008-12-04
    • KR1020080042961
    • 2008-05-08
    • 후지쯔 세미컨덕터 가부시키가이샤
    • 곤도히데아키사와다마사루무라카미노리오마스이쇼이치
    • H03H1/02H03H11/04H04B1/30
    • H03H11/1291H03H7/12H03H2007/0192H03H2011/0494
    • A filter circuit and a semiconductor apparatus are provided to correct a frequency characteristic of the filter by calibrating the frequency characteristic of a low pass filter. A filter circuit includes a low pass filter(106,107), and a calibration circuit. The calibration circuit corrects the frequency characteristic of the low pass filter. The calibration circuit includes a negative feedback circuit, and a control circuit. The negative feedback circuit gives the negative feedback to the low pass filter in a correction mode of the filter circuit and forms the loop circuit. The negative feedback circuit oscillates the loop circuit by making the gain of the loop circuit above 1. The control circuit controls the frequency characteristic of the low pass filter in the correction mode of the filter circuit so that the oscillation frequency of the loop circuit is within the fixed range.
    • 提供一种滤波电路和半导体装置,通过校准低通滤波器的频率特性来校正滤波器的频率特性。 滤波器电路包括低通滤波器(106,107)和校准电路。 校准电路校正低通滤波器的频率特性。 校准电路包括负反馈电路和控制电路。 负反馈电路在滤波电路的校正模式中给低通滤波器提供负反馈,并形成环路电路。 负反馈电路通过使环路电路的增益高于1来振荡环路。控制电路在滤波电路的校正模式下控制低通滤波器的频率特性,使得环路电路的振荡频率在 固定范围。
    • 97. 发明公开
    • 반도체 메모리 및 테스트 시스템
    • 半导体存储器和测试系统
    • KR1020080098080A
    • 2008-11-06
    • KR1020087023475
    • 2006-03-28
    • 후지쯔 세미컨덕터 가부시키가이샤
    • 코바야시히로유키
    • G11C29/00G11C7/10
    • G11C29/44G11C11/401G11C29/026G11C29/1201G11C29/50G11C29/78
    • A cell array comprises a word line and a bit line which are connected to a memory cell, and a redundant word line and a redundant bit line which are connected to a redundant memory cell. A reading section reads data held in the memory cell. A defect detecting input section receives a defect detecting signal from a test device. A dummy defect output section outputs a dummy defect signal during a predetermined period of time after the defect detecting input section receives the defect detecting signal. A data output section inverts the logic of the read data outputted from a reading circuit while the dummy defect signal is activated. This enables generation of a pseudo defect by means of a semiconductor memory without changing any test device or test program. More specifically, a single bit defect can be replaced by a predetermined bit line defect or word line defect without changing any testing environment. As a result, the efficiency of the remedy can be improved to reduce the cost of the test.
    • 单元阵列包括连接到存储器单元的字线和位线,以及连接到冗余存储单元的冗余字线和冗余位线。 读取部分读取存储单元中保存的数据。 缺陷检测输入部分从测试装置接收缺陷检测信号。 虚设缺陷输出部在缺陷检测输入部接收到缺陷检测信号之后的预定时间段期间输出虚设缺陷信号。 当虚拟缺陷信号被激活时,数据输出部分反转从读取电路输出的读取数据的逻辑。 这使得能够通过半导体存储器产生伪缺陷,而不改变任何测试装置或测试程序。 更具体地,可以在不改变任何测试环境的情况下,用预定位线缺陷或字线缺陷代替单位缺陷。 因此,可以提高补救的效率,以降低测试成本。