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1. 发明授权

US06181452B2 Optical transmitting and receiving apparatus 失效
公开(公告)号：US06181452B2
公开(公告)日：2001-01-30
申请号：US09037860
申请日：1998-03-10
申请人： Toshiaki Shou , Fumio Sato , Yoshiaki Yunoki , Motoyasu Nagashima , Masamichi Sato , Kazumasa Taninaka
发明人： Toshiaki Shou , Fumio Sato , Yoshiaki Yunoki , Motoyasu Nagashima , Masamichi Sato , Kazumasa Taninaka
IPC分类号： H04B1000
CPC分类号： H04B10/801
摘要： In an optical transmitting and receiving apparatus, an light transmitting and receiving unit includes a light emitting element, a light transmitting lens, a light receiving lens, and a photosensitive element. The light emitting element outputs light. The light outputted from the light emitting element passes through the light transmitting lens before leaving the light transmitting and receiving unit as outgoing light. The light receiving lens concentrates incoming light on the photosensitive element. A first support member is operative for supporting the light transmitting and receiving unit, and for allowing the light transmitting and receiving unit to rotate about a first axis. A first rotary mechanism connected to the light transmitting and receiving unit and the first support member is operative for rotating the light transmitting and receiving unit about the first axis. A second support member is operative for supporting the light transmitting and receiving unit on a cantilever basis, and for allowing the light transmitting and receiving unit to rotate about a second axis perpendicular to the first axis. A second rotary mechanism connected to the light transmitting and receiving unit and the second support member is operative for rotating the light transmitting and receiving unit about the second axis.

2. 发明授权

US06323977B2 Optical transmitting and receiving apparatus 失效
标题翻译：光发射和接收设备
公开(公告)号：US06323977B2
公开(公告)日：2001-11-27
申请号：US09732897
申请日：2000-12-11
申请人： Toshiaki Shou , Fumio Sato , Yoshiaki Yunoki , Motoyasu Nagashima , Masamichi Sato , Kazumasa Taninaka
发明人： Toshiaki Shou , Fumio Sato , Yoshiaki Yunoki , Motoyasu Nagashima , Masamichi Sato , Kazumasa Taninaka
IPC分类号： H04B1000
CPC分类号： H04B10/801
摘要： In an optical transmitting and receiving apparatus. an light transmitting and receiving unit includes a light emitting element, a light transmitting lens, a light receiving lens, and a photosensitive element. The light emitting element outputs light. The light outputted from the light emitting element passes through the light transmitting lens before leaving the light transmitting and receiving unit as outgoing light. The light receiving lens concentrates incoming light on the photosensitive element. A first support member is operative for supporting the light transmitting and receiving unit, and for allowing the light transmitting and receiving unit to rotate about a first axis. A first rotary mechanism connected to the light transmitting and receiving unit and the first support member is operative for rotating the light transmitting and receiving unit about the first axis. A second support member is operative for supporting the light transmitting and receiving unit on a cantilever basis, and for allowing the light transmitting and receiving unit to rotate about a second axis perpendicular to the first axis. A second rotary mechanism connected to the light transmitting and receiving unit and the second support member is operative for rotating the light transmitting and receiving unit about the second axis.
摘要翻译：在光发射和接收装置中。光发射和接收单元包括发光元件，透光透镜，光接收透镜和感光元件。发光元件输出光。从发光元件输出的光在作为出射光离开光发射接收单元之前通过透光透镜。光接收透镜将入射光聚焦在感光元件上。第一支撑构件用于支撑光发射和接收单元，并且允许光发射和接收单元围绕第一轴线旋转。连接到光发射和接收单元和第一支撑构件的第一旋转机构用于围绕第一轴线旋转光发射和接收单元。第二支撑构件用于以悬臂为基础支撑光发射和接收单元，并且允许光发射和接收单元围绕垂直于第一轴线的第二轴线旋转。连接到光发射和接收单元和第二支撑构件的第二旋转机构用于围绕第二轴线旋转光发射和接收单元。

3. 发明授权

US5600471A Optical wireless data transmission system and optical wireless data transmitting/receiving apparatus 失效
标题翻译：光无线数据传输系统和光无线数据发射/接收设备
公开(公告)号：US5600471A
公开(公告)日：1997-02-04
申请号：US430041
申请日：1995-04-27
申请人： Kazutoshi Hirohashi , Yoshiaki Yunoki
发明人： Kazutoshi Hirohashi , Yoshiaki Yunoki
IPC分类号： H04B10/10 , H04B10/00
CPC分类号： H04B10/11 , H04B10/1149
摘要： An optical wireless transmission system providing short-distance communication, such as for linking a personal computer to a LAN, utilizes direct baseband modulation of optical signals, but provides simultaneous bidirectional transmission of data between a pair of optical transmitting/receiving units while also enabling a data clock signal to be easily regenerated from a received optical signal. Effects of signal noise due to artificial illumination are eliminated by a suitable choice of transmission bandwidth, and bandpass filtering of a received data signal.
摘要翻译：提供诸如用于将个人计算机连接到LAN的短距离通信的光无线传输系统利用光信号的直接基带调制，但在一对光发射/接收单元之间提供数据的同时双向传输，同时还能够数据时钟信号从接收到的光信号容易地再生。通过合适的传输带宽选择和接收数据信号的带通滤波来消除由于人造照明引起的信号噪声的影响。

4. 发明授权

US5349463A Optical radio repeater with signal quality detection 失效
标题翻译：具有信号质量检测的光无线电中继器
公开(公告)号：US5349463A
公开(公告)日：1994-09-20
申请号：US68572
申请日：1993-05-28
申请人： Kazutoshi Hirohashi , Hiroshi Horii , Hideo Koike , Yoshiaki Yunoki , Tetsuo Fukasawa , Susumu Katayama , Akio Yoshikawa , Keishi Ushijima , Takaaki Takeda , Takeshi Nomoto , Michio Kikuta , Shunichi Shichijo , Yoshiki Iwasaki
发明人： Kazutoshi Hirohashi , Hiroshi Horii , Hideo Koike , Yoshiaki Yunoki , Tetsuo Fukasawa , Susumu Katayama , Akio Yoshikawa , Keishi Ushijima , Takaaki Takeda , Takeshi Nomoto , Michio Kikuta , Shunichi Shichijo , Yoshiki Iwasaki
IPC分类号： H04B10/10 , H04B10/00 , H04B10/16
CPC分类号： H04B10/1149
摘要： An optical radio system includes a host device, an end device, and a repeater. The host device and the end device communicate with each other via the repeater by use of optical radio. The repeater includes a section for receiving a first light signal from one of the host device and the end device, a section for converting the received first light signal into a first electric signal, a section for frequency-converting the first electric signal into a second electric signal, and a section for generating a second light signal in response to the second electric signal and transmitting the generated second light signal. The repeater also includes a section for demodulating one of the first electric signal and the second electric signal into a baseband signal, a section for detecting a quality of the baseband signal, and a section for enabling transmission of the second light signal only when the detected quality of the baseband signal is equal to or greater than a predetermined quality.
摘要翻译：光无线电系统包括主机设备，终端设备和中继器。主机设备和终端设备通过中继器通过使用光无线电相互通信。中继器包括用于从主机设备和终端设备之一接收第一光信号的部分，用于将接收的第一光信号转换为第一电信号的部分，用于将第一电信号频率转换为第二电信号的部分电信号和用于响应于第二电信号产生第二光信号并发送所生成的第二光信号的部分。中继器还包括用于将第一电信号和第二电信号中的一个解调为基带信号的部分，用于检测基带信号的质量的部分，以及仅在检测到的基带信号时能够传输第二光信号的部分基带信号的质量等于或大于预定质量。

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