摘要:
An object of the present invention is to prevent a sensitivity difference between pixels. There are disposed plural unit cells each including plural photodiodes with plural transfer MOSFETs arranged respectively corresponding to the plural photodiodes, and a common MOSFET that amplifies and outputs signals read from the plural photodiodes. The unit cell includes reset and selecting MOSFETs. Within the unit cell, each pair of photodiode and corresponding transfer MOSFET has translational symmetry with respect to one another.
摘要:
An endoscope video processing system applies a blooming control feature to image frames of video data signals generated by viewing elements in the endoscope tip. A reduced digital gain is applied to a luminance (Y) component of the video data signal to generate an attenuated signal. An average luminance value of pixels neighboring a pixel of the attenuated signal is calculated and a function of the average luminance value is determined to generate a smoothly transitioning digital gain. The smoothly transitioning digital gain is conditioned using weights to generate a customizable digital gain, and the customizable digital gain is applied to the attenuated signal. This Local Blooming Control (LBC) facilitates a higher luminance digital gain in darker portions while maintaining a low or no luminance digital gain in brighter portions, within the same image frame.
摘要:
A solid state imaging device including multiple unit pixels including a photoelectric converter generating electrical charge in accordance with incident light quantity and accumulating the charge, a first transfer gate transferring the accumulated charge, a charge holding region holding the transferred charge, a second transfer gate transferring the held charge, and a floating diffusion region converting the transferred charge into voltage; an intermediate charge transfer unit transferring, to the charge holding region, a charge exceeding a predetermined charge amount as a first signal charge; and a pixel driving unit setting the first transfer gate to a non-conducting state, set the second transfer gate to a conducting state, transfer the first signal charge to the floating diffusion region, set the second transfer gate to a non-conducting state, set the first transfer gate to a conducting state, and transfer the accumulated charge to the charge holding region as a second signal charge.
摘要:
An array comprises a plurality of pixels logically arranged in rows and columns. The pixels comprise a photoreceptor (11) for converting impinging radiation into electronic charge, a transfer element (12) for transferring the electronic charge towards a sense node, a reset transistor (13) for resetting the sense node (16), means for converting the electronic charge onto the sense node (16) into a voltage, and for outputting the voltage as a pixel signal, and means adapted for biasing the sense nodes at a low voltage lower than a reset voltage which is meant to initialize the photoreceptor, during integration of impinging radiation on the photoreceptors. The means for converting and outputting comprise a source follower (14) for converting the electronic charge, and a select transistor (15) for outputting the voltage as a pixel signal, and the reset transistor of at least one pixel is coupled with one main electrode to the gate of the reset transistor of another pixel.
摘要:
A solid-state imaging device is provided. The solid-state imaging device includes an imaging region having a plurality of pixels arranged on a semiconductor substrate, in which each of the pixels includes a photoelectric converting portion and a charge converting portion for converting a charge generated by photoelectric conversion into a pixel signal and blooming is suppressed by controlling a substrate voltage of the semiconductor substrate.
摘要:
A solid state imaging device includes: multiple unit pixels including a photoelectric converter generating electrical charge in accordance with incident light quantity and accumulating the charge, a first transfer gate transferring the accumulated charge, a charge holding region holding the transferred charge, a second transfer gate transferring the held charge, and a floating diffusion region converting the transferred charge into voltage; an intermediate charge transfer unit transferring, to the charge holding region, a charge exceeding a predetermined charge amount as a first signal charge; and a pixel driving unit setting the first transfer gate to a non-conducting state, set the second transfer gate to a conducting state, transfer the first signal charge to the floating diffusion region, set the second transfer gate to a non-conducting state, set the first transfer gate to a conducting state, and transfer the accumulated charge to the charge holding region as a second signal charge.
摘要:
A method of maintaining a status of a product item is provided. The product item includes an associated interface surface which has coded data including a plurality of coded data portions indicative of the product item's identity. The method includes, in a sensing device, sensing at least one coded data portion, generating indicating data indicative of the product item identity therefrom, and transferring the indicating data to a computer system. The computer system is responsive to the indicating data to update product status information stored in a data store. Each coded data portion is indicative of the respective position. The method further includes, generating in the sensing device and using the sensed coded data portion, indicating data indicative of at least one of a position of the sensed coded data portion on the interface surface and a position of the sensing device relative to the interface surface.
摘要:
A method of maintaining a status of a product item is provided. The product item includes an associated interface surface which has coded data including a plurality of coded data portions indicative of the product item's identity. The method includes, in a sensing device, sensing at least one coded data portion, generating indicating data indicative of the product item identity therefrom, and transferring the indicating data to a computer system. The computer system is responsive to the indicating data to update product status information stored in a data store. The coded data is substantially invisible to the unaided eye.
摘要:
A charge injection circuit is used to control injection of an electronic charge to be added to a photon-induced charge generated by a detector of a direct integration circuit. The electronic charge can be injected directly to the detector or through a parallel path to the detector. Injection of the electronic charge is controlled through one or more switching transistors
摘要:
A method of facilitating communications using a product item is disclosed. The product item includes a surface having disposed thereon or therein coded data. In one implementation sensing data is received from a user device. The sensing data resulted from sensing the coded data. A determination is made that the sensing data is indicative of a communication request associated with a provider. A provider address is provided to the user device. A message and a destination address sent from the user device to the provider address is then received. Finally, the message is forwarded to the destination address.