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公开(公告)号：US10367638B2
公开(公告)日：2019-07-30
申请号：US15101509
申请日：2013-12-16
Applicant: Nokia Technologies Oy
Inventor： David Bitauld , Antti Niskanen
Abstract: Methods and apparatus for use in quantum cryptographic applications are disclosed. An optical signal having a first wavelength is encoded for quantum cryptography at a stage where the optical signal is on at least two signal paths. The wavelength of the encoded optical signal on the at least two signal paths is converted to a second wavelength before the optical signal is encoded for transmission. Encoding for transmission is applied to the optical signal on the second wavelength.
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公开(公告)号：US10333619B2
公开(公告)日：2019-06-25
申请号：US15531522
申请日：2014-12-12
Applicant: Nokia Technologies Oy
Inventor： Marc Bailey , David Bitauld
Abstract: According to an example aspect of the present invention, there is provided an apparatus comprising at least one memory configured to store positioning information, and at least one processing core configured to determine a position estimate for the apparatus based at least in part on the positioning information and on at least one direction of a steerable optical beam, the steerable optical beam being steerable by the apparatus.
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Patent Agency Ranking
公开(公告)号：US10187162B2
公开(公告)日：2019-01-22
申请号：US15508061
申请日：2014-09-04
Applicant: Nokia Technologies Oy
Inventor： Hongwei Li , David Bitauld
IPC: H04B10/69 , H04B10/114 , H04B10/40 , H04B10/50 , G02B26/08 , G02B26/10 , G02B27/30 , H04B10/70 , G02B5/12 , H04L9/08
Abstract: According to an example aspect of the present invention, there is provided an apparatus (201) comprising adjustable optical equipment (290), a position sensitive photodetector (280), at least one light emitter (220), and control circuitry (104) configured to cause the light emitter (220) and the adjustable optical equipment (290) to output from the apparatus (201) a divergent beam of light, to determine a location of a light signal on the position sensitive photodetector (280) and to cause at least one of the at least one light emitter (220) and the adjustable optical equipment (290) to output from the apparatus (201) a collimated beam of light to a direction selected based at least in part on the location of the light signal on the position sensitive photodetector (280).
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公开(公告)号：US09915850B2
公开(公告)日：2018-03-13
申请号：US14907665
申请日：2013-07-30
Applicant: Nokia Technologies Oy
Inventor： David Bitauld , Antti Niskanen
IPC: G02F1/295 , G02F1/29 , H04B10/114
CPC classification number: G02F1/2955 , G02F1/29 , G02F2001/291 , G02F2001/294 , G02F2203/15 , H04B10/1143
Abstract: Apparatuses and methods for producing and/or receiving an optical beam are disclosed, A phased array on a chip comprises phase shifters and off-chip couplers to provide phase controlled pixels. An optical system is arranged in front of the phased array. The optical system is configured to concentrate light from the phased array and/or expand a received beam of light for input into the phased array.
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公开(公告)号：US09885938B2
公开(公告)日：2018-02-06
申请号：US14907665
申请日：2013-07-30
Applicant: Nokia Technologies Oy
Inventor： David Bitauld , Antti Niskanen
IPC: G02F1/295 , G02F1/29 , H04B10/114
Abstract: Apparatuses and methods for producing and/or receiving an optical beam are disclosed, A phased array on a chip comprises phase shifters and off-chip couplers to provide phase controlled pixels. An optical system is arranged in front of the phased array. The optical system is configured to concentrate light from the phased array and/or expand a received beam of light for input into the phased array.
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公开(公告)号：US09692508B2
公开(公告)日：2017-06-27
申请号：US14898210
申请日：2013-07-01
Applicant: Nokia Technologies Oy
Inventor： David Bitauld
IPC: H04B10/00 , H04B10/116 , H04B10/114 , H04L9/08 , H04B10/079 , H04N9/31
CPC classification number: H04B10/116 , H04B10/07955 , H04B10/1141 , H04B10/1149 , H04L9/0852 , H04L9/0855 , H04L2209/24 , H04N9/3138
Abstract: Directional optical communications are provided between devices such as at least one pixel is selected from an array of pixels provided by an image projecting device for emitting light from an emitting device towards a target area of a receiving device. Light is then emitted by the selected at least one pixel towards the target area.
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公开(公告)号：US20170045752A1
公开(公告)日：2017-02-16
申请号：US15306191
申请日：2014-04-28
Applicant: NOKIA TECHNOLOGIES OY
Inventor： David Bitauld
CPC classification number: G02B27/283 , H04B10/11 , H04B10/40
Abstract: An apparatus may include an optical combiner configured to combine a first optical beam having an adjusted first polarization with a second optical beam having an adjusted second polarization into an output beam having a third polarization. The third polarization may be a linear combination of the adjusted first polarization and the adjusted second polarization. Information may be communicated by adjusting the polarization according to an information source.
Abstract translation: 一种装置可以包括光学组合器，其被配置为将具有调整的第一偏振的第一光束与具有经调整的第二偏振的第二光束组合成具有第三偏振的输出光束。 第三偏振可以是经调整的第一偏振和调节的第二偏振的线性组合。 可以通过根据信息源调整极化来传送信息。
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