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公开(公告)号：US11140340B2
公开(公告)日：2021-10-05
申请号：US16958198
申请日：2018-12-18
申请人： Robert Bosch GmbH
IPC分类号： H04N5/33 , G01S17/894 , H04N13/254 , H04N13/296 , G01S7/4863 , G01S7/4865 , H04N5/369 , H04N5/351 , H04N5/3745
摘要： A 3D camera uses a modulated visible light source for depth imaging and includes a processor operable to perform time multiplexing between image detection and depth or time-of-flight (ToF) detection using the same photodetectors. The camera can alternate between the image detection mode and the ToF detection mode to produce a continuous stream of color and depth images that can be overlaid without the need for any post-processing software. The camera is configured to determine time-of-flight using analog integration modules, thereby minimizing the circuitry necessary for analog-to-digital conversions and ToF calculations in the digital domain.
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公开(公告)号：US20210075982A1
公开(公告)日：2021-03-11
申请号：US16772448
申请日：2018-12-07
申请人： Robert Bosch GmbH
IPC分类号： H04N5/353 , H01L27/146 , H04N9/04 , H04N5/378 , H04N5/355
摘要： An image sensor has a plurality of rows and columns of pixels, including RGB and bandpass I filters in a predetermined pattern shifted between adjacent columns so that none of the RGBI filters is adjacent the same type of filter. Each pixel includes a photodiode, a transfer gate and a floating diffusion. The transfer gate for all pixels in a pattern is controlled by the same signal, which can be a separate synchronous control signal controlled based on a predefined integration period or an asynchronous signal generated internally by the bandpass filter I and that is compared to a predefined voltage level indicative of a predetermined intensity at filter I. Upon activation of either signal, the integration period for the pixels ends and the charge on the floating diffusion for the R, G and B pixels is digitized in relation to the bandpass pixel I using a ratio-to-digital converter.
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公开(公告)号：US20210055625A1
公开(公告)日：2021-02-25
申请号：US16964782
申请日：2019-01-24
申请人： Robert Bosch GmbH
摘要： A phase-shifter for a light-transmitting waveguide is segmented into multiple segments that can be calibrated to the overall length of a conventional single phase-shifter. Each segment receives a control signal, which can be a single bit signal, with the phase-shift capability of the segmented phase-shifter controlled by which segment(s) receive(s) a control signal. In one implementation, a binary weighting is applied to determine segment lengths. Smaller segments can be increased in length to achieve a 2π offset of the phase shift produced by the segment while maintaining the same binary relationship among segments. In another embodiment, multiple segments of uniform lengths can be used for a single phase-shifter with each segment controlled by an n-bit signal.
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公开(公告)号：US10598968B2
公开(公告)日：2020-03-24
申请号：US16217501
申请日：2018-12-12
申请人： Robert Bosch GmbH
摘要： A transmitter for an optical device includes semi-conductor waveguides, each incorporating an electro-optic phase-shifter in the semi-conductor waveguide that is operable to change the refractive index of the waveguide to thereby introduce a phase shift in the light propagated through the waveguide. The electro-optic is connected to a phase shift controller and to a temperature measurement component, such as a PTAT circuit, that is integrated into the electronic or photonic chip carrying the waveguide. Temperature measurement by the measurement component can be multiplexed with the normal operation of the phase-shifter so that the temperature measurement function does not interfere with the phase shifting function.
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公开(公告)号：US20190268560A1
公开(公告)日：2019-08-29
申请号：US16251551
申请日：2019-01-18
申请人： Robert Bosch GmbH
摘要： An analog-to-digital converter (ADC) sampling system and method for imaging and non-imaging systems to conserve power consumption is provided. The ADC sampling system performs only two comparisons for each pixel based on a background value and a threshold value to determine whether the light detected by the pixel is different from a background image.
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公开(公告)号：US20210075980A1
公开(公告)日：2021-03-11
申请号：US16958198
申请日：2018-12-18
申请人： Robert Bosch GmbH
摘要： A 3D camera uses a modulated visible light source for depth imaging and includes a processor operable to perform time multiplexing between image detection and depth or time-of-flight (ToF) detection using the same photodetectors. The camera can alternate between the image detection mode and the ToF detection mode to produce a continuous stream of color and depth images that can be overlaid without the need for any post-processing software. The camera is configured to determine time-of-flight using analog integration modules, thereby minimizing the circuitry necessary for analog-to-digital conversions and ToF calculations in the digital domain.
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公开(公告)号：US20210058605A1
公开(公告)日：2021-02-25
申请号：US16958455
申请日：2018-12-18
申请人： Robert Bosch GmbH
IPC分类号： H04N13/254 , H04N13/296 , G01S7/4865 , G01S7/4863 , G01S17/894
摘要： A 3D camera uses a modulated visible light source for depth imaging and includes a processor operable to perform time multiplexing between image detection and depth or time-of-flight (ToF) detection using the same photodetectors. The camera can alternate between the image detection mode and the ToF detection mode to produce a continuous stream of color and depth images that can be overlaid without the need for any post-processing software. The camera can also be configured to determine time-of-flight using analog integration modules, thereby minimizing the circuitry necessary for analog-to-digital conversions and ToF calculations in the digital domain.
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公开(公告)号：US10803737B2
公开(公告)日：2020-10-13
申请号：US16063645
申请日：2016-12-30
申请人： Robert Bosch GmbH
摘要： A vision traffic marker network system includes a management system and a plurality of self-powered wireless traffic nodes configured to collect data from a wireless mesh network. Each wireless traffic node is configured to function as a mesh network traffic node and in each mesh network traffic node, the mesh network traffic node is configured to exchange data between the traffic nodes. Each wireless traffic node in the vision traffic marker system is communicatively coupled to any server and client machine. The management system includes a data acquisition layer, a processing layer, a communication layer, and a management layer. The acquisition layer is configured to receive data from the plurality of wireless traffic nodes and transmit the acquired data to the processing layer so that the acquired data is processed and filtered before the data is broadcasted and distributed the plurality of wireless traffic nodes which in turn exchange or share the data with any server and client machine. The management layer is configured to perform at least one of the function including: managing and controlling other layers, assigning each node with a role to perform a specific function, and reporting the information to a stakeholder for maintenance.
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公开(公告)号：US20200169669A1
公开(公告)日：2020-05-28
申请号：US16632103
申请日：2018-08-09
申请人： Robert Bosch GmbH
发明人： Vladimir Petkov , Pedram Lajevardi , Christoph Lang , Nikhil Naikal , Sam Kavusi
IPC分类号： H04N5/232 , G06T3/40 , G06F1/3296
摘要： An imaging system for low-power and low data-rate applications is provided. The imaging system comprises a pixel array having a plurality of photosensitive elements (pixels) divided into a plurality of groups of photosensitive elements (super pixels). An image processor is operably connected to the pixel array and configured to selectively operate each group of photosensitive elements in either (i) a high resolution mode in which the pixel array outputs readout voltages corresponding to all of the photosensitive elements in the respective group of photosensitive elements or (ii) a low resolution mode in which the pixel array outputs readout voltages corresponding to only a subset of the photosensitive elements in the respective group of photosensitive elements. Groups of photosensitive elements corresponding to detected motion in each image frame are operated in the high resolution mode, while the remaining groups of photosensitive elements are operated in the low resolution mode.
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公开(公告)号：US20180357895A1
公开(公告)日：2018-12-13
申请号：US16062554
申请日：2016-12-30
申请人： Robert Bosch GmbH
CPC分类号： G08G1/02 , E01F9/30 , E01F9/553 , G08G1/0116 , G08G1/0133 , G08G1/0175 , G08G1/054 , H04W84/18
摘要： A vision traffic marker network system comprises a plurality of vision traffic markers or traffic nodes configured to capture information such as an event, an environment, a profile, or a condition of an object such as vehicle, human, combination thereof, or the like, for example. The environment information may be time of day, day of week, weather, traffic condition, and the like. The nodes may be one of a traffic node, an ambient node, a repeater, a gateway, or a combination thereof. These nodes are arranged in network neighborhoods and configured to communicate with at least one of the communication networks with at least one of the vision traffic markers or nodes, a control system, the automotive, a server, a global navigation system, other non-vision devices, traffic lights, street lights, electronic devices, or combination thereof, via one more links, either wirelessly or wired communication. The vision traffic marker network system analysis, process, distribute, and report the information to any vision traffic marker network system, client machines, and a server over a network.
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