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    • 13. 发明授权
    • Polarization modulation with amplitude differential
    • 具有幅度差的极化调制
    • US07298789B2
    • 2007-11-20
    • US10773361
    • 2004-02-06
    • Hiroaki KuboNorio Fujita
    • Hiroaki KuboNorio Fujita
    • H04L27/10
    • H04L27/32H04B14/008
    • Wireless data communication method and apparatus using two electromagnetic signals having different polarizations. Codes related to relative values of the amplitudes of the two signals are generated in correspondence with data to be transmitted. The signals are modulated according to the codes using phase shift keying and amplitude shift keying. The amplitude shift keying modulates the two electromagnetic signals by changing the difference between their two amplitudes in accordance with data encodings. The two signals are transmitted to receiver, which decodes the phases and relative amplitudes to obtain the codes, and reproduces the data from the obtained codes.
    • 使用具有不同偏振的两个电磁信号的无线数据通信方法和装置。 与两个信号的幅度的相对值相关的代码是与要发送的数据相对应地产生的。 根据代码使用相移键控和幅移键控对信号进行调制。 幅度键控通过根据数据编码改变其两个幅度之间的差异来调制两个电磁信号。 这两个信号被发送到接收机,其解码相位和相对幅度以获得代码,并且从获得的代码再现数据。
    • 15. 发明授权
    • Digital camera
    • 数码相机
    • US06704053B1
    • 2004-03-09
    • US09337235
    • 1999-06-22
    • Masahito NiikawaHiroaki Kubo
    • Masahito NiikawaHiroaki Kubo
    • H04N5225
    • H04N5/2254
    • A digital camera which uses the resources of silver halide single lens reflex cameras to provide an angle of field equal to that of a silver halide single lens reflex camera without enlarging the size of the image sensing element, and which provides excellent holding characteristics because the camera body is not elongated in the backward direction. A taking lens for a silver halide single lens reflex camera is used as a taking lens 301. A digital camera provided with a reducing lens 302 disposed behind a taking lens in the direction of the optical axis of the taking lens and on the optical axis of the taking lens, and a CCD sensor 303 for photoelectrically converting an optical image transmitted through the taking lens and the reducing lens, and which is disposed at the composite focus point of the taking lens and the reducing lens. This construction ensures the field angle is identical to that of a silver halide single lens reflex camera even when a small size image sensing element is used. The camera body is also compact.
    • 使用卤化银单反相机的资源的数码相机提供与卤化银单镜头反射相机相同的角度,而不会增大图像感测元件的尺寸,并且由于相机而提供优异的保持特性 身体不向后延伸。 使用用于卤化银单镜头反光相机的拍摄镜头作为拍摄镜头301.一种数字照相机,其设置有设置在拍摄镜头后面的拍摄镜头在拍摄镜头的光轴方向上的减影透镜302的光轴 拍摄镜头和用于光电转换通过拍摄镜头和缩小镜片传输的光学图像并且被设置在拍摄镜头和还原镜片的复合焦点处的CCD传感器303。 这种结构确保了即使当使用小尺寸图像感测元件时,场角也与卤化银单透镜反光相机的角度相同。 相机机身也很紧凑。