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    • 11. 发明申请
    • Low power and high linearity receivers with reactively biased front ends
    • 具有反应性偏置前端的低功率和高线性接收器
    • US20010036816A1
    • 2001-11-01
    • US09753123
    • 2000-12-29
    • Sony Corporation / Sony Electronics Inc.
    • Christopher Peter Wieck
    • H04B001/00
    • H03F1/0272H03F3/1935H03F2200/294H03F2200/372H03F2203/7239H04B1/109
    • A radio frequency receiver includes an amplifier and a detector that produces a bias control signal indicating the level of the signal environment in which the receiver is currently operating. A bias generator sets the bias level of the amplifier according to the bias control signal, where the bias level tends to increase as the signal level increases. Other circuits within the early stages or front end of a radio frequency receiver can also have such reactively adjusted bias levels. These include buffers for local intermediate frequency oscillators and radio frequency to intermediate frequency mixers or converters. The invention can be used to increase the range of linearity (and thus the intermodulation immunity) of RF amplification stages. It can also be used to reduce typical power consumption by reducing the bias level under typical conditions and relying on the bias control to increase bias levels under adverse signal conditions. The invention can be particularly advantageous for applications where power is at a premium and the receiver, or at least its front end, must operate while the device is in standby mode. Such applications include mobile, portable and hand held pagers and wireless telephones and Internet connections. If standby mode operation in non-maximum signal environments dominates the usage of the receiver, then the invention can substantially increase battery life.
    • 射频接收机包括放大器和检测器,其产生指示接收机当前正在操作的信号环境的电平的偏置控制信号。 偏置发生器根据偏置控制信号设置放大器的偏置电平,其中偏置电平随信号电平增加而趋于增加。 无线电频率接收机的早期或前端内的其他电路也可以具有这样的反应性调整的偏置电平。 这些包括用于本地中频振荡器和射频到中频混频器或转换器的缓冲器。 本发明可用于增加RF放大级的线性范围(从而增加互调抗扰度)。 它也可以用于通过在典型条件下降低偏置电平来降低典型功耗,并依靠偏置控制来增加不利信号条件下的偏置电平。 本发明对于功率非常大的应用而言尤其有利,并且接收器或至少其前端必须在器件处于待机模式时工作。 这样的应用包括移动,便携式和手持寻呼机以及无线电话和因特网连接。 如果在非最大信号环境中的待机模式操作主导了接收机的使用,则本发明可以显着延长电池寿命。
    • 12. 发明申请
    • Secure conditional access port interface
    • US20060182279A1
    • 2006-08-17
    • US11398406
    • 2006-04-04
    • Jun MaruoAtsushi Kagami
    • Jun MaruoAtsushi Kagami
    • H04N7/167
    • H04N21/4367H04N5/4401H04N7/163H04N21/4408
    • An apparatus and method thereof for providing a secure path for a digital signal in an intelligent transceiver such as a bi-directional set-top box. A digital signal (e.g., a broadcast signal or a signal received via a cable modem) is received by the intelligent transceiver at a front-end device (comprising, for example, a tuner). The digital signal is descrambled (if it is scrambled) and encrypted (if it is not encrypted) by a first functional block (e.g., an interface card or point of deployment) coupled to the front-end device. Coupled to the front-end device via the first functional block is a second functional block for processing (e.g., decoding) audio and/or visual content within the digital signal. Integrated into the second functional block is a decryption engine for decrypting encrypted signals. Signals from the front-end device are received via the first functional block by the decryption engine integral to the second functional block. There are no points between the first functional block and the decryption engine and between the decryption engine and the second functional block at which a descrambled and decrypted signal can be intercepted, thus providing a secure interface between the front-end device and the second functional block.
    • 14. 发明申请
    • Method and apparatus for providing status in digital television channels
    • 用于在数字电视频道中提供状态的方法和装置
    • US20040145680A1
    • 2004-07-29
    • US10690429
    • 2003-10-21
    • Sony Corporation/Sony Electronics Inc.
    • William G. Bennett
    • H04N005/50
    • H04N5/44513H04N17/004H04N17/04H04N21/4345H04N21/4383H04N21/44209H04N21/488
    • A method for displaying a status to a television viewer provides detailed information to a viewer. According to the method, signal strength of a received RF signal is evaluated, and an RF signal strength indicator value is created. The RF signal strength indicator value can be a qualitative indicator, such as strong, good, normal, weak, or absent. The RF signal indicator value can also be a qualitative value. A transport signal is also evaluated and a transport signal validity indicator value is then created. A quantitative value could be obtained based on the bit error rate, for example. Additionally, received parsing information is evaluated and a parsing validity indicator value is created. As with the transport signal, the received parsing information can be evaluated to obtain a qualitative indicator, such as valid or invalid. The RF signal strength indicator value, the transport signal validity indicator value and the parsing validity indicator value are displayed automatically if television programming is not being displayed or detected when programming a channel map or under control of a user. So, if the programming fails to display or be detected, these status values are displayed in place of a blank screen.
    • 用于向电视观看者显示状态的方法向观众提供详细信息。 根据该方法,对接收到的RF信号的信号强度进行评价,生成RF信号强度指标值。 RF信号强度指标值可以是定性指标,如强,好,正常,弱或不存在。 RF信号指标值也可以是定性值。 还评估传输信号,然后创建传输信号有效性指示符值。 例如,可以基于比特错误率获得定量值。 另外,评估接收到的解析信息,并创建解析有效性指示符值。 与传输信号一样,可以评估接收到的解析信息以获得诸如有效或无效的定性指示符。 如果在编程频道图或用户控制下未显示或检测到电视节目,则自动显示RF信号强度指示符值,传输信号有效性指示符值和解析有效性指示符值。 因此,如果编程无法显示或被检测到,则显示这些状态值代替空白屏幕。
    • 15. 发明申请
    • Method and apparatus for displaying an image on a display with a different aspect ration than the image
    • 用于在与图像不同的显示比例的显示器上显示图像的方法和装置
    • US20040145595A1
    • 2004-07-29
    • US10690428
    • 2003-10-21
    • Sony Corporation/Sony Electronics Inc.
    • William G. Bennett
    • G09G005/00
    • H04N7/0122G09G5/00G09G2340/0407G09G2340/0442
    • A video scaler optimizes the display properties of an image so that as little image is lost as possible while occupying as much of the screen as possible. By so doing, a high definition image can be made larger without losing all of edges of the picture. According to one aspect of the present invention, a method for displaying a 16:9 aspect ratio image on a 4:3 aspect ratio screen provides that the image is proportionally increased so that approximately 13% of the image is lost at the sides while approximately only 13% of the screen is unused at the top and bottom. Similarly, a method for displaying a 4:3 aspect ratio image on a 16:9 aspect ratio screen provides that the image is proportionally increased so that approximately 13% of the image is lost at the top and bottom while approximately only 13% of the screen is unused at the sides. According to yet another aspect of the present invention, the viewer can control the scaling ratio of the image so that the percentage of lost image varies from zero to its maximum, e.g., 25% for a 4:3 aspect ratio image and a 16:9 aspect ratio screen.
    • 视频缩放器优化图像的显示属性,以便在尽可能多地占用屏幕的同时尽可能少地丢失图像。 通过这样做,可以使高分辨率图像变大而不会损失图像的所有边缘。 根据本发明的一个方面,用于在4:3宽高比屏幕上显示16:9宽高比图像的方法提供了图像成比例地增加,使得大约13%的图像在侧面丢失,而大约 只有13%的屏幕在顶部和底部未使用。 类似地,用于在16:9宽高比屏幕上显示4:3宽高比图像的方法提供图像按比例增加,使得图像的大约13%在顶部和底部丢失,而大约只有13% 屏幕在侧面未使用。 根据本发明的另一方面,观看者可以控制图像的缩放比例,使得丢失图像的百分比从零变为最大,例如对于4:3高宽比图像而言为25%,而16: 9宽高比屏幕。
    • 20. 发明申请
    • Scanning method for applying ultrasonic acoustic data to the human neural cortex
    • 将超声波数据应用于人类神经皮层的扫描方法
    • US20040267118A1
    • 2004-12-30
    • US10823090
    • 2004-04-12
    • Sony Corporation/Sony Electronics Inc.Sony IDS 50N3272.02
    • Thomas Patrick Dawson
    • A61B008/00
    • A61N7/00A61N2007/0095
    • A method for creating sensory experiences operates by scanning the acoustical signal across the human neural cortex to create the desired sensory perceptions. The acoustic signal is scanned in a predetermined pattern. The pattern is then modified to fill in spaces in the predetermined pattern so that over a short time period, the desired signal is scanned across the intended region of the neural cortex. In one exemplary embodiment, the pattern begins with an array of points on the cortex. Thus, an acoustic signal in an array of points is directed towards the cortex. The acoustic pattern is then shaped to expand in radius about each point. Thus, the acoustic signal scans the visual cortex in an array of expanding circles. Varying the signal at each point along the radius as it expands produces neural firing differences in the neural tissue. When the circles expand to where they begin to touch, the pattern changes to fill in the areas between the original array of points. The new circles are centered about the points between the original stimulation locations, and the acoustic signal contracts about these new centers. The signal continues to contract about the new center points. When the new circles have contracted to an array of points, the process can be repeated from the start or simply reversed. Another method operates by forming concentric circles and expanding and contracting each of the concentric circles to fill in the original spaces between the concentric circles.
    • 用于产生感觉体验的方法通过扫描穿过人类神经皮层的声学信号来产生期望的感觉知觉。 以预定的模式扫描声信号。 然后修改图案以填充预定图案中的空间,使得在短时间内,跨越神经皮质的预期区域扫描期望的信号。 在一个示例性实施例中,图案以皮质上的点阵列开始。 因此,点阵列中的声信号指向皮层。 声学图案然后成形为围绕每个点的半径扩大。 因此,声信号以扩展圆阵列扫描视觉皮质。 随着它的扩展,沿着半径的每个点改变信号会在神经组织中产生神经发射差异。 当圆圈扩展到他们开始触摸的地方时,图案会改变以填充原始阵列点之间的区域。 新的圈子集中在原始刺激位置之间的点,以及关于这些新中心的声信号合约。 信号在新的中心点继续收缩。 当新界已经签订了一系列的分数时,这个过程可以从一开始就重复,或者简单地反转。 另一种方法通过形成同心圆并且扩展和收缩每个同心圆以填充同心圆之间的原始空间来操作。