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1. 发明授权

US06952276B2 Printer detecting data precisely in response to change in data transmission speed 失效
标题翻译：打印机根据数据传输速度的变化精确地检测数据
公开(公告)号：US06952276B2
公开(公告)日：2005-10-04
申请号：US09127688
申请日：1998-07-31
申请人： Hiroshi Sotokawa , Takashi Kato
发明人： Hiroshi Sotokawa , Takashi Kato
IPC分类号： G06K15/10 , G06F13/00 , G06F3/12
CPC分类号： G06K15/10
摘要： A printer, which is connected to a host computer, comprises a synchronizing signal output section for outputting a synchronizing signal to the host computer, a data detection section for detecting print data received from the host computer by using a sampling signal, and a print processing execution section for performing print processing based on the detected print data, wherein the sampling signal has a frequency higher than the synchronizing signal has. Upon detection of a change command for changing the clock rate of the synchronizing signal from the host computer, the printer may give a signal to the host computer for instructing the host computer to stop transmitting data and change the synchronizing signal into the clock rate specified in the change command. Upon completion of changing the clock rate of the synchronizing signal, the printer may output a signal to the host computer for instructing the host computer to restart transmitting data. A count value is counted by a timer in sequence and each time the expiration of the counting is reached, a data output command signal may be output to a data transmission section and data of a predetermined length may be transmitted from the data transmission section to the host computer.
摘要翻译：连接到主计算机的打印机包括用于向主计算机输出同步信号的同步信号输出部分，用于通过使用采样信号来检测从主计算机接收的打印数据的数据检测部分和打印处理执行部分，用于基于检测到的打印数据执行打印处理，其中采样信号具有高于同步信号的频率。当检测到用于改变来自主计算机的同步信号的时钟速率的改变命令时，打印机可以向主计算机发出一个信号，指示主计算机停止发送数据，并将同步信号改变为更改命令。当完成改变同步信号的时钟速率时，打印机可以向主计算机输出信号，以指示主计算机重启发送数据。计数值由计时器按顺序计数，并且每当达到计数到期时，数据输出命令信号可以被输出到数据传输部分，并且可以从数据传输部分向数据传输部分发送预定长度的数据主机。

2. 发明授权

US06570666B1 Printer detecting data precisely in response to change in data transmission speed 失效
标题翻译：打印机根据数据传输速度的变化精确地检测数据
公开(公告)号：US06570666B1
公开(公告)日：2003-05-27
申请号：US09014161
申请日：1998-01-27
申请人： Hiroshi Sotokawa
发明人： Hiroshi Sotokawa
IPC分类号： G06K1500
CPC分类号： G06F3/1204 , G06F3/1229 , G06F3/1236 , G06F3/1284
摘要： A printer, which is connected to a host computer, comprises a synchronizing signal output section for outputting a synchronizing signal to the host computer, a data detection section for detecting print data received from the host computer by using a sampling signal, and a print processing execution section for performing print processing based on the detected print data, wherein the sampling signal has a frequency higher than the synchronizing signal has. Upon detection of a change command for changing the clock rate of the synchronizing signal from the host computer, the printer may give a signal to the host computer for instructing the host computer to stop transmitting data and change the synchronizing signal into the clock rate specified in the change command. Upon completion of changing the clock rate of the synchronizing signal, the printer may output a signal to the host computer for instructing the host computer to restart transmitting data. A count value is counted by a timer in sequence and each time the expiration of the counting is reached, a data output command signal may be output to a data transmission section and data of a predetermined length may be transmitted from the data transmission section to the host computer.
摘要翻译：连接到主计算机的打印机包括用于向主计算机输出同步信号的同步信号输出部分，用于通过使用采样信号来检测从主计算机接收的打印数据的数据检测部分和打印处理执行部分，用于基于检测到的打印数据执行打印处理，其中采样信号具有高于同步信号的频率。当检测到用于改变来自主计算机的同步信号的时钟速率的改变命令时，打印机可以向主计算机发出一个信号，指示主计算机停止发送数据，并将同步信号改变为更改命令。当完成改变同步信号的时钟速率时，打印机可以向主计算机输出信号，以指示主计算机重启发送数据。计数值由计时器按顺序计数，并且每当达到计数到期时，数据输出命令信号可以被输出到数据传输部分，并且可以从数据传输部分向数据传输部分发送预定长度的数据主机。

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