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61. 发明授权

US5200916A Mantissa processing circuit of floating point arithmetic apparatus for addition and subtraction 失效
标题翻译：用于加法和减法的浮点运算装置的尾数处理电路
公开(公告)号：US5200916A
公开(公告)日：1993-04-06
申请号：US813664
申请日：1991-12-27
申请人： Tadahiro Yoshida
发明人： Tadahiro Yoshida
IPC分类号： G06F7/00 , G06F5/01 , G06F7/38 , G06F7/485 , G06F7/50 , G06F7/76
CPC分类号： G06F7/485 , G06F5/012 , G06F7/49947
摘要： A mantissa processing circuit of a floating point arithmetic apparatus defines an arithmetic unit 11, a rounding adder 12, a postshift-count-encode circuit (PSCE circuit) 13, and a postshift circuit 14. The arithmetic unit 11 outputs as a first intermediate result (intermediate sum) R1 the results of addition and subtraction on preshifted mantissa data ma and mb. The rounding adder 12 outputs as a second intermediate result (rounding result) R2 the result of rounding addition for the intermediate sum R1. The PSCE circuit 13 outputs data on postshift to be applied to the rounding result R2. The postshift circuit 14 actually shifts the rounding result R2 to the right or left for normalization. The PSCE circuit 13 includes a shifting part 15 and a shift correcting part 16. The shifting part 15 specifies the contents of postshift according to the position of the first non-zero value bit in the intermediate sum R1. The shift correcting part 16 corrects the quantity of postshift when it is expected that the position of the first non-zero value bit is moved for a carry at the time of rounding addition. The rounding adder 12 and the PSCE circuit 13 execute processing in parallel, so that there can be enhanced the processing speeds of the rounding and normalization for the results of addition and subtraction on the mantissa data ma and mb.
摘要翻译：浮点算术装置的尾数处理电路定义了运算单元11，舍入加法器12，后移计数编码电路（PSCE电路）13和后移电路14.算术单元11作为第一中间结果输出（中和）R1对预定尾数数据ma和mb的加法和减法结果。舍入加法器12作为第二中间结果（舍入结果）R2输出中间和R1的舍入加法结果。 PSCE电路13输出用于换档的数据，以应用于舍入结果R2。换档电路14实际上将舍入结果R2向右或向左移动以进行归一化。 PSCE电路13包括移位部15和移位校正部16.移位部15根据中间和R1中的第一非零值位的位置来指定副移位的内容。当预期在舍入加法时，第一非零值位的位置为进位而移动时，换档校正部16校正换挡量。舍入加法器12和PSCE电路13并行执行处理，从而可以提高对尾数数据ma和mb的加法和减法结果的舍入和归一化的处理速度。

62. 发明授权

US4884094A Data transmission system for a camera 失效
公开(公告)号：US4884094A
公开(公告)日：1989-11-28
申请号：US215227
申请日：1988-07-05
申请人： Mashio Kitaura , Masaaki Nakai , Tadahiro Yoshida , Yoshiiku Kikukawa , Takanobu Omaki , Nobuyuki Taniguchi
发明人： Mashio Kitaura , Masaaki Nakai , Tadahiro Yoshida , Yoshiiku Kikukawa , Takanobu Omaki , Nobuyuki Taniguchi
IPC分类号： G03B7/091 , G03B7/16 , G03B17/38
CPC分类号： G03B17/38 , G03B7/097 , G03B7/16
摘要： From a data transmission device to a camera system including a camera and electronic flash device, operation instruction data such as set or calculated exposure control data, shutter release data instructing the operation of the camera system, flash emission testing data and the like are serially transmitted in the form of infrared light signal. When the reception of these data is completed, the camera starts its operation to control given operation of the camera system such as the exposure initiation of the camera, test light emission of the electronic flash device and the like in accordance with received data. Additionally, in the case where the data transmission device is an exposure meter which measures flash light and daylight, flash light emission operation or light emission interruption operation of the electronic flash device is controlled in accordance with the determination whether the exposure control data calculated and transmitted to the camera system is for the daylight photography or the flash light photography.

63. 发明授权

US4814811A Still camera system 失效
标题翻译：静物相机系统
公开(公告)号：US4814811A
公开(公告)日：1989-03-21
申请号：US210189
申请日：1988-06-22
申请人： Mitsuru Saito , Tadahiro Yoshida , Yasuhiro Morimoto , Nobuyuki Taniguchi
发明人： Mitsuru Saito , Tadahiro Yoshida , Yasuhiro Morimoto , Nobuyuki Taniguchi
IPC分类号： G03B7/16 , G03B17/18 , G03B17/48 , H04N5/225 , H04N5/232 , G03B19/04 , H04M1/00
CPC分类号： H04N5/232 , G03B17/18 , G03B17/48 , G03B7/16 , H04N5/2251
摘要： A still camera system comprises a camera body which carrys alternatively a film back or a still video back having a solid-state image pickup device for receiving still images in order to record them on a recording medium. The improved system includes a display, a first means for providing the display information on the film back installing mode, and a second means for providing the display information on the still video back installing mode.
摘要翻译：一种静态照相机系统包括一个相机主体，它携带一个胶片背面或一个静态视频背面，它具有一个用于接收静止图像的固态图像拾取装置，以将它们记录在记录介质上。改进的系统包括显示器，用于提供关于回放安装模式的显示信息的第一装置，以及用于在静止视频回放安装模式上提供显示信息的第二装置。

64. 发明授权

US4635248A Start-stop synchronous data transmission system with a reduced redundancy 失效
标题翻译：起停同步数据传输系统冗余减少
公开(公告)号：US4635248A
公开(公告)日：1987-01-06
申请号：US700294
申请日：1985-02-11
申请人： Tadahiro Yoshida
发明人： Tadahiro Yoshida
IPC分类号： H04J3/24 , H04B1/66 , H04L5/24 , H04J3/00
CPC分类号： H04L5/24
摘要： Data signals in each channel over a plurality of sequential frames of a time division multiplex signal as received are temporarily stored in each channel memory, and are read out together from the channel memory at a given time to form a combined data signal. A start bit signal, a stop bit signal and an address signal corresponding to the channel are added to the combined data signal to form a start-stop synchronous fresh channel signal. The resultant N fresh channels are sequentially sent out to a common transmission line as a fresh time division multiplex signal with a reduced redundancy. A plurality of sub-equipments are connected to the common transmission line and take into the data signals of a channel assigned thereto according to the address data signal.
摘要翻译：接收到的时分多路复用信号的多个顺序帧中的每个信道中的数据信号被临时存储在每个通道存储器中，并且在给定时间从通道存储器一起读出以形成组合的数据信号。将起始位信号，停止位信号和对应于该通道的地址信号加到组合数据信号上以形成起始 - 停止同步新信道信号。所得N个新鲜信道被顺序地发送到公共传输线路，作为具有减少的冗余度的新的时分多路复用信号。多个子设备连接到公共传输线，并根据地址数据信号接收分配给它的信道的数据信号。

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