公开(公告)号：US06724416B1

公开(公告)日：2004-04-20

申请号：US10263099

申请日：2002-10-01

Applicant: Jianxin Liu

Inventor： Jianxin Liu

IPC: H04N714

CPC classification number: H04N7/147 ,  H04N7/148

Abstract: An Image Transceiving Telephone with Integrated Digital Camera (ITTDC) for simultaneous transceiving of real-time audio and non-real time image through a Public Switched Telephone Network (PSTN) is disclosed. The ITTDC includes an integrated telephone front end, a PSTN access device, an audio CODEC, an image input device, an image CODEC, an image display device, a local storage for an embedded system control software and associated control and operating parameters and data, an optional local electronic interface, a user-control and a system control including the embedded system control software. The control software further includes an audio sampling and processing means, an image capturing and processing means and a process priority control means allocating, via a real-time audio but non-real time image transfer protocol control, a highest priority to tasks for audio information processing whereas a lower priority to tasks for image information processing.

Abstract translation: 公开了一种用于通过公共交换电话网（PSTN）同时收发实时音频和非实时图像的集成数码相机（ITTDC）的图像收发电话。 ITTDC包括集成电话前端，PSTN接入设备，音频CODEC，图像输入设备，图像CODEC，图像显示设备，用于嵌入式系统控制软件的本地存储器以及相关联的控制和操作参数和数据， 可选的本地电子接口，用户控制和包括嵌入式系统控制软件的系统控制。 控制软件还包括音频采样和处理装置，图像捕获和处理装置和处理优先级控制装置，其经由实时音频但非实时图像传送协议控制将最高优先级分配给用于音频信息的任务 而对图像信息处理任务的优先级较低。

公开(公告)号：US6163789A

公开(公告)日：2000-12-19

申请号：US195295

申请日：1998-11-18

Applicant: Jianxin Liu

Inventor： Jianxin Liu

IPC: H03G5/00 ,  H03H17/02 ,  G06F17/10

CPC classification number: H03H17/02 ,  H03G5/005

Abstract: An improved digital parametric equalizer realized by software stored in a computer readable memory. The computer readable memory stores a first and a second set of instructions. The first set of instructions determines a value of a tuning coefficient based upon whether a parametric equalizer is to cut or to boost an input signal. The second set of instructions implements a filter to realize the parametric equalizer. The second set of instructions uses the value of the tuning coefficient and the input signal to produce an output signal having substantially symmetrical cut and boost spectrums.

Abstract translation: 由存储在计算机可读存储器中的软件实现的改进的数字参数均衡器。 计算机可读存储器存储第一和第二组指令。 第一组指令基于参数均衡器是要切割还是提升输入信号来确定调谐系数的值。 第二组指令实现一个过滤器来实现参数均衡器。 第二组指令使用调谐系数和输入信号的值来产生具有基本对称的切割和升压谱的输出信号。