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公开(公告)号：US5581776A
公开(公告)日：1996-12-03
申请号：US382994
申请日：1995-02-03
申请人： Jari Hagqvist , Jukka Ranta
发明人： Jari Hagqvist , Jukka Ranta
摘要： A computer controlled apparatus includes a program counter for manifesting program count values and a processor for executing a prestored program in accordance with the program count values. The apparatus includes a read only memory with a prestored program that is accessible in response to generation of a span of program count values. Auxiliary memory includes a prestored program segment. A control circuit is coupled to the program counter and stores a predetermined program count value within the span of program count values in ROM. The control circuit is responsive to a match of a program count value from the program counter and the determined program count value to cause the program counter to be loaded with a branch program count value. That value enables the processor to immediately access and execute the prestored program segment from the auxiliary memory in lieu of a subspan of program count addresses in the ROM. The processor responds to the branch program count value as though it is a next program count value from a previous program count value, thereby seamlessly executing the second prestored program.
摘要翻译： 计算机控制装置包括用于显示程序计数值的程序计数器和用于根据程序计数值执行预存储程序的处理器。 该装置包括只读存储器，其具有可响应于程序计数值的跨度的生成而可访问的预存储程序。 辅助存储器包括预先存储的程序段。 控制电路耦合到程序计数器，并将预定的程序计数值存储在ROM中的程序计数值范围内。 控制电路响应来自程序计数器的程序计数值和确定的程序计数值的匹配，以使程序计数器加载分支程序计数值。 该值使得处理器能够立即从辅助存储器访问并执行预存的程序段，代替ROM中的程序计数地址的子跨段。 处理器响应于分支程序计数值，就像它是来自先前程序计数值的下一程序计数值一样，从而无缝地执行第二预存储程序。
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公开(公告)号：US5715310A
公开(公告)日：1998-02-03
申请号：US359044
申请日：1994-12-19
申请人： Jari Hagqvist
发明人： Jari Hagqvist
CPC分类号： H04M9/08
摘要： The invention provides an apparatus and method and a device for echo attenuation in a telephone. According to the invention, the echo attenuation in the telephone is adapted to the background noise such that the ambient background noise in telephone (10) is measured with a noise detector (1) and the noise level is determined in a background noise measurement unit (2). The background noise that has been determined is used to set the attenuation parameters in parameter determining unit (3). The signal level received from the other subscriber's telephone (11) is measured in input signal level measurement unit (4). The feed signal of the telephone is attenuated in attenuation Control unit (6) on the basis of the attenuation values calculated, which have been determined from the attenuation parameters and the signal level received by the other subscriber in output signal attenuation determining unit (5).
摘要翻译： 本发明提供一种用于电话中回波衰减的装置和方法以及装置。 根据本发明，电话中的回波衰减适应于背景噪声，使得电话（10）中的环境背景噪声用噪声检测器（1）测量，噪声电平在背景噪声测量单元（ 2）。 已经确定的背景噪声用于设置参数确定单元（3）中的衰减参数。 在输入信号电平测量单元（4）中测量从另一用户电话（11）接收的信号电平。 基于从衰减参数确定的衰减值和由输出信号衰减确定单元（5）中的其他用户接收的信号电平，衰减控制单元（6）中的电话的馈送信号被衰减， 。
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