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    • 62. 发明授权
    • Delay adjustment device and delay adjustment method
    • 延时调整装置和延时调整方法
    • US08363492B2
    • 2013-01-29
    • US13056020
    • 2010-05-27
    • Kouichi IshinoTakeshi NakayamaMasahiro Ishii
    • Kouichi IshinoTakeshi NakayamaMasahiro Ishii
    • G11C7/00
    • G06F13/1689
    • Provided is a delay adjustment device for adjusting delay of a strobe signal, which specifies when to read a data signal on a data line, with respect to the data signal in order to perform data transfer with an external memory. A testing unit 150 included in a delay adjustment unit is provided with a memory bandwidth monitoring unit 212 that monitors memory bandwidth in use on the data line used for data transfer with a memory circuit. The testing unit 150 performs delay adjustment when the memory bandwidth in use is lower than a predetermined threshold. Delay adjustment is performed by delaying the strobe signal from the data signal by a variety of predetermined delays and determining whether data transfer is successful at each delay, calculating an optimal delay, and thereafter delaying the strobe signal by the calculated delay.
    • 提供了一种用于调整选通信号的延迟的延迟调整装置,该选通信号指定何时读取数据线上的数据信号,以便与外部存储器进行数据传送。 包括在延迟调整单元中的测试单元150设置有存储带宽监视单元212,其利用用于与存储器电路进行数据传输的数据线一起使用中的存储器带宽。 当使用的存储器带宽低于预定阈值时,测试单元150执行延迟调整。 通过将数据信号的选通信号延迟各种预定的延迟并确定数据传输是否在每个延迟成功,计算最佳延迟,然后将选通信号延迟所计算的延迟来执行延迟调整。
    • 65. 发明申请
    • Traffic Sign Apparatus
    • 交通标志装置
    • US20080271352A1
    • 2008-11-06
    • US10585870
    • 2005-01-19
    • Takeshi NakayamaAkira AbeDai ShimizuFumihiro ItoshimaKazuo HaradaMasahiro OdaYasuhiro Makii
    • Takeshi NakayamaAkira AbeDai ShimizuFumihiro ItoshimaKazuo HaradaMasahiro OdaYasuhiro Makii
    • G09F13/02
    • G09F13/02G09F13/42
    • There is provided a traffic sign apparatus that can improve the luminance of a sign surface which emits light by ultraviolet irradiation, and the uniformity ratio of illuminance, so as to enhance the visibility thereof in the nighttime. The traffic sign apparatus 10 includes a sign body 11 having the sign surface 14 which emits light by ultraviolet irradiation, and an irradiation device 12 for irradiating ultraviolet rays onto the sign surface 14. Assuming that the maximum incident angle of the ultraviolet rays be θ1, the ultraviolet rays being irradiated from the ultraviolet emission lamps 26 of the irradiation unit 12 onto the objective sign surfaces W1 and W2 on the sign surface 14 which is the irradiation object of the ultraviolet emission lamps 26; and that the minimum incident angle be θ2, the angle θ1 is set to more than 30° and less than 70°; and the angle θ 2 is set to more than 5° and less than 30°.
    • 提供一种交通标志装置,其可以通过紫外线照射提高发光的标志面的亮度和照度的均匀性,从而提高夜间的可见度。 交通标志装置10包括具有通过紫外线照射发光的标志面14的标志体11和用于将紫外线照射在标志面14上的照射装置12。 假设紫外线的最大入射角为θ1,则从照射单元12的紫外线发射灯26照射到作为照射对象的标志面14上的物体标记面W 1,W 2上的紫外线 的紫外线发射灯26; 并且最小入射角为θ2,将角度θ设定为大于30°并小于70°; 并且角度θ2设定为大于5°且小于30°。
    • 67. 发明申请
    • Slave device, master device and stacked device
    • 从设备,主设备和堆叠设备
    • US20050289269A1
    • 2005-12-29
    • US11149171
    • 2005-06-10
    • Takeshi NakayamaEiji TakahashiYoshiyuki SaitoYukihiro IshimaruHideki Iwaki
    • Takeshi NakayamaEiji TakahashiYoshiyuki SaitoYukihiro IshimaruHideki Iwaki
    • G06F13/00G06F13/40G06F13/42
    • G06F13/409G06F13/4226H01L2224/05001H01L2224/05009H01L2224/05568H01L2224/16145H01L2924/00014H01L2224/05599H01L2224/05099
    • A stacked device is disclosed which is easily manufactured while identifying a plurality of devices that are stacked in the stacked device. The stacked device includes a stack of a plurality of slave devices and a master device having identical terminal arrangements. Here, the master device includes command transmission unit configured to input an identification command to a terminal of an adjacent slave device. Furthermore, the slave device includes a through-wire for interconnecting at least one terminal of that same device and an adjacent slave device; command reception unit configured to receive the identification command; and ID (identifier) setting unit configured to set the ID of that same device based on the identification command; the positions of the terminals that are interconnected with the adjacent slave devices differing in each slave device, so that, in each slave device, the slave device command reception unit receive an identification command having a modified value as a result of transiting through-wires that are connected at differing positions in each slave device.
    • 公开了一种容易制造的堆叠式装置,同时识别堆叠在堆叠装置中的多个装置。 堆叠式装置包括多个从装置的堆叠和具有相同端子装置的主装置。 这里,主设备包括命令传输单元,其被配置为向相邻从设备的终端输入识别命令。 此外,从设备包括用于互连同一设备的至少一个终端和相邻从设备的通线; 命令接收单元,被配置为接收所述识别命令; ID(识别符)设定部,其基于所述识别命令来设定同一设备的ID; 与相邻从设备互连的终端的位置在每个从设备中不同,从而在每个从设备中,从设备命令接收单元接收作为转接通线的结果具有修改值的标识命令, 被连接在每个从设备中的不同位置。
    • 70. 发明授权
    • Double heterojunction semiconductor laser having improved light
confinement
    • 具有改进的光限制的双异质结半导体激光器
    • US5870419A
    • 1999-02-09
    • US996254
    • 1997-12-22
    • Takeshi Nakayama
    • Takeshi Nakayama
    • H01S5/00H01S5/042H01S5/12H01S5/20H01S5/223H01S5/32H01S3/19
    • H01S5/0421H01S5/20H01S5/0425H01S5/12H01S5/2004H01S5/2231H01S5/3216
    • A double heterojunction semiconductor laser includes a semiconductor substrate of a first semiconductor material having a first conductivity type; successively disposed on the semiconductor substrate, a first cladding layer of the first conductivity type, an active layer, and a second cladding layer of a second conductivity type, opposite the first conductivity type, the second cladding layer having a central ridge including side surfaces and a top surface; a current blocking layer of the first conductivity type disposed on the second cladding layer and contacting the side surfaces of the ridge; a second conductivity type contact layer of the first semiconductor material disposed on the top surface of the ridge and on the current blocking layer; and first and second electrodes contacting the semiconductor substrate and the contact layer, respectively, wherein at least one of the first and second cladding layers is a superlattice layer including a plurality of alternating layers of different compositions, the superlattice layer lattice matching with the first semiconductor material.
    • 双异质结半导体激光器包括具有第一导电类型的第一半导体材料的半导体衬底; 依次配置在所述半导体基板上,与所述第一导电型相反的第一导电型的第一包层,第二导电型的有源层和第二包层,所述第二包层具有包括侧面的中心脊, 顶面 所述第一导电类型的电流阻挡层设置在所述第二覆层上并与所述脊的侧表面接触; 所述第一半导体材料的第二导电型接触层设置在所述脊的顶表面上和所述电流阻挡层上; 以及分别与所述半导体衬底和所述接触层接触的第一和第二电极,其中所述第一和第二覆层中的至少一个是包括多个不同组成的交替层的超晶格层,所述超晶格层晶格与所述第一半导体 材料。