公开(公告)号：US5801681A

公开(公告)日：1998-09-01

申请号：US692831

申请日：1996-07-30

Applicant: Michel Sayag

Inventor： Michel Sayag

IPC: G06F1/00 ,  G06F3/02 ,  G06F3/033 ,  G06F3/042 ,  G06F21/00 ,  G07C9/00 ,  G09G5/08

CPC classification number: G07C9/00158 ,  G06F21/32 ,  G06F21/83 ,  G06F3/021 ,  G06F3/0213 ,  G06F3/03545 ,  G06F3/03547 ,  G06F3/0421 ,  G06F2203/0338 ,  G06F2203/04109 ,  G06F2211/007

Abstract: A method and apparatus for generating a control signal which corresponds to movement of an object in contact with a first surface are described. The apparatus includes a platen having the first surface. The platen is characterized by a critical angle beyond which light incident upon the first surface is not transmitted. A source of electromagnetic radiation emits electromagnetic radiation through the platen thereby illuminating the object. A detector having a plurality of sectors receives a portion of the electromagnetic radiation diffused by the object and transmitted through the platen beyond the critical angle. The sectors of the detector accumulate charge in response to the incident electromagnetic radiation. Conversion circuitry then converts the charge accumulated in the detector to the control signal, which in a specific embodiment is for controlling the movement of a pointer on a display.

公开(公告)号：US5737098A

公开(公告)日：1998-04-07

申请号：US559510

申请日：1995-11-15

Applicant: Michel Sayag

Inventor： Michel Sayag

IPC: H04N5/372 ,  H04N9/04 ,  H04N9/07 ,  H04L1/04 ,  H04N3/14 ,  H04N5/335

CPC classification number: H04N9/045 ,  H04N3/1525 ,  H04N3/155 ,  H04N2209/048

Abstract: A technique and structure is used for producing high resolution color images using a monochrome area charge-coupled device (CCD) 64 and a sequential color illumination scheme. The monochrome CCD 64 comprises a plurality of semiconductor storage cells 76, the semiconductor storage cells 76 being configured in an array having vertical columns 74 and horizontal rows 79. The entire CCD 64 is exposed to a first color image. The charge packets 82 stored in two adjacent horizontal rows as a result of the exposure are then shifted into a third horizontal row. The CCD 64 is then exposed to a second color image. The charge packets 82 stored in the first horizontal row as a result of the second exposure are then shifted into the second horizontal row. The CCD 64 is then exposed to a third and final color image. The CCD output is digitized and stored in a frame. The color information of a particular location on the CCD array 64 is derived by utilizing a simple set of equations.

公开(公告)号：US5055667A

公开(公告)日：1991-10-08

申请号：US541579

申请日：1990-06-21

Applicant: Michel Sayag

Inventor： Michel Sayag

IPC: G01R31/26 ,  H01L27/148 ,  H04N5/355 ,  H04N5/359 ,  H04N5/372

CPC classification number: H04N5/2355 ,  G01R31/2641 ,  H01L27/14831 ,  H01L27/14887 ,  H04N3/155

Abstract: A method of controlling the dynamic range of a CCD or similar device. The method is used in connection with a charge-coupled device or like structure of known construction having a photogate region in which charge is generated at a rate proportional to the intensity of incident electromagnetic radiation. The photogate accumulates charge during a predetermined exposure period. A sink region is disposed to receive excess charge from the photogate region, and the passage of charge from the photogate region to the sink region is controlled by a control gate of the type commonly used for integration control. A second gated region is present for receiving charge from the photogate region for transporting charge therefrom. A potential is applied to the control gate which has a magnitude causing all charge above a certain charge clipping level in the photogate region to pass to the sink region, and the magnitude of the potential is caused to vary during the exposure period according to a predetermined function, which may be a non-linear function such as logarithmic. In this way the clipping level varies according to the predetermined function in real time during the exposure period. The total charge accumulated in the photogate region, limited according to the predetermined function, is then transferred to the second gated region at the end of the exposure period.

Abstract translation: 一种控制CCD或类似装置的动态范围的方法。 该方法与具有光栅区域的已知结构的电荷耦合器件或类似结构结合使用，其中以与入射电磁辐射强度成比例的速率产生电荷。 光栅在预定的曝光期间累积电荷。 宿区域设置成从光栅区域接收过量的电荷，并且电荷从光栅区域到沉降区域的通过由通常用于集成控制的类型的控制栅极控制。 存在第二选通区域用于从光栅区域接收用于从其输送电荷的电荷。 电位被施加到控制栅极，该栅极具有导致光栅区域中的高于某一电荷限幅电平的所有电荷的幅度，以传递到接收器区域，并且使电位值在曝光期间根据预定的 函数，其可以是诸如对数的非线性函数。 以这种方式，限幅电平在曝光期间根据预定功能实时变化。 然后，在曝光期间结束时，将依照预定功能限制的光栅区域中积累的总电荷转移到第二选通区域。