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    • 2. 发明授权
    • Least-recently-used circuit
    • 最近最少使用的电路
    • US5140690A
    • 1992-08-18
    • US759643
    • 1991-09-12
    • Masayuki HataAkira Yamada
    • Masayuki HataAkira Yamada
    • G06F12/12
    • G06F12/125
    • A least-recently-used (LRU) circuit determines a replaceable term needed for storing data newly loaded from cache memory for example. The circuit comprises a recently-used information storing means relating to the top priority order or the subordinative order among plural terms, and a least-recently-used determining means for determining which is the top priority term or the subordinative term in accordance with information stored in the recently-used information storing means. High speed processing is thus possible by simplified logical construction. Also, the circuit is provided with control means which directly or indirectly select the predetermined replaceable term, in situations where the determining means cannot properly determine the top-priority replaceable term. Therefore, even when the top-priority replaceable term is selected directly or indirectly, the cache memory can be securely prevented from discontinuing its own functional operation.
    • 最近最少使用(LRU)电路确定例如存储从缓存存储器新加载的数据所需的可替换术语。 电路包括与多个术语中的最高优先顺序或次要顺序有关的最近使用的信息存储装置,以及根据存储的信息确定哪个是最高优先级项或次要术语的最近最近使用的确定装置 在最近使用的信息存储装置中。 因此,通过简化的逻辑结构可以实现高速处理。 此外,在确定装置无法正确地确定最高优先级可替换项的情况下,电路设置有直接或间接选择预定可替换项的控制装置。 因此,即使直接或间接选择最优先级可替换项,也可以可靠地防止高速缓冲存储器中止自身的功能操作。
    • 5. 发明授权
    • Data access apparatus for preventing further cache access in case of an
error during block data transfer
    • 数据访问装置,用于在块数据传输期间发生错误时防止进一步的高速缓存访​​问
    • US5544341A
    • 1996-08-06
    • US454893
    • 1995-05-31
    • Hiromasa NakagawaAkira YamadaMasayuki Hata
    • Hiromasa NakagawaAkira YamadaMasayuki Hata
    • G06F12/08G11C29/00G06F13/00G06F11/00
    • G11C29/88G06F12/0879
    • A data processor and method for preventing access to a cache memory when an abnormality occurs during a block data transfer. The data processor is provided with a central processing unit (CPU), a memory and the cache which stores a part of the data being stored in the memory. When the data to be accessed by the central processing unit is not stored in the cache, the data processor employs a block transfer method where the central processing unit reads out from the memory a block of data, including a predetermined number of data (words) in which the data to be accessed is located. When an abnormality, such as a parity error, is detected in transferring a data word in the block of data to be accessed, the cache is inhibited from reading another data word in the block to be accessed, and the CPU stops reading out the rest of the block of data to be read out from the memory, so that the central processing unit can immediately take action to respond to the abnormality.
    • 一种用于在块数据传送期间发生异常时防止对高速缓存存储器的访问的数据处理器和方法。 数据处理器设置有中央处理单元(CPU),存储器和存储存储在存储器中的一部分数据的高速缓存。 当中央处理单元要访问的数据不存储在高速缓存中时,数据处理器采用块传送方法,其中中央处理单元从存储器读出包括预定数量的数据(字)的数据块, 其中要访问的数据位于其中。 当在传送要访问的数据块中的数据字中检测到诸如奇偶校验错误的异常时,禁止高速缓存读取要访问的块中的另一个数据字,并且CPU停止读出其余部分 的数据块从存储器读出,使得中央处理单元可以立即采取动作来响应异常。
    • 7. 发明授权
    • Recording apparatus with ultraviolet light irradiation unit
    • 具有紫外线照射单元的记录装置
    • US08783818B2
    • 2014-07-22
    • US13305651
    • 2011-11-28
    • Akira YamadaShinichi Kamoshida
    • Akira YamadaShinichi Kamoshida
    • B41J29/393
    • B41J29/393B41J11/002
    • A recording apparatus including a recording head that discharges UV ink onto a recording material and an ultraviolet light irradiation unit that irradiates ultraviolet light to the discharged UV ink so as to harden the UV ink; further includes a failure diagnostic unit that diagnoses a failure condition of the ultraviolet light irradiation unit and a controller that controls operations of the recording head, the ultraviolet light irradiation unit, and the failure diagnostic unit. Further, the controller is so configured as to change the operation mode of the recording apparatus to a failure-state mode when the ultraviolet light irradiation unit has been diagnosed as a failure by the failure diagnostic unit.
    • 一种记录装置,包括:将UV油墨排放到记录材料上的记录头;以及紫外光照射单元,其将紫外光照射到排出的UV油墨上,以使UV油墨硬化; 进一步包括诊断紫外线照射单元的故障状态的故障诊断单元和控制记录头,紫外线照射单元和故障诊断单元的操作的控制器。 此外,控制器被配置为当紫外线照射单元已经被故障诊断单元诊断为故障时,将记录装置的操作模式改变为故障状态模式。