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1. 发明授权

US06226664B1 Method and device for adding and subtracting thermometer coded data 失效
标题翻译：加减温度计编码数据的方法和装置
公开(公告)号：US06226664B1
公开(公告)日：2001-05-01
申请号：US08277386
申请日：1994-07-19
申请人： Fuk Ho P. Ng , Shivaling S. Mahant-Shetti
发明人： Fuk Ho P. Ng , Shivaling S. Mahant-Shetti
IPC分类号： G06F750
CPC分类号： G06F7/50 , G06F7/544 , G06F2207/5442
摘要： Two thermometer coded words having a most significant byte (MSB) and a least significant byte (LSB) are subtracted, and a check detects a borrowing condition. A first borrowing condition is detected if word B MSB is greater than word A MSB (12), and word A LSB is greater than word B LSB (14). In such a case a borrow (16) must take place on word B MSB. A second borrowing condition is detected when the word A MSB is greater than the word B MSB (18) and the word B LSB is greater than the word A LSB (20). In this instance, a borrow (22) should take place on word A MSB through a shift right function. After borrowing, a subtraction (24) takes place by exclusive-or'ing word A and B MSBs. The result is reconstructed (26) through a shift right process into proper thermometer code format. If a borrowing condition exists, an appropriate LSB is translated (28, 30) before an LSB subtraction process (32) takes the resulting word A and word B LSBs and exclusively-or's them together. The result is reconstructed (34) through a shift right rotate left process to place the LSB in proper thermometer code format.
摘要翻译：减去具有最高有效字节（MSB）和最低有效字节（LSB）的两个温度计编码字，并检查借用条件。如果字B MSB大于字A MSB（12），字A LSB大于字B LSB（14），则检测到第一个借用条件。在这种情况下，借用（16）必须在B字母MSB上进行。当字A MSB大于字B MSB（18）并且字B LSB大于字A LSB（20）时，检测到第二借位条件。在这种情况下，借用（22）应通过转移权函数在A MSB上进行。借用后，通过排除A或B的MSBs来进行减法（24）。结果通过正确的转换重建（26）到适当的温度计代码格式。如果存在借用条件，则在LSB减法处理（32）将所得到的字A和字B LSB作为LSB之前，将它们排列在一起之前，转换适当的LSB（28,30）。通过右移旋转左进程重建（34）结果，将LSB置于合适的温度计代码格式。

2. 发明授权

US5699287A Method and device for adding and subtracting thermometer coded data 失效
标题翻译：加减温度计编码数据的方法和装置
公开(公告)号：US5699287A
公开(公告)日：1997-12-16
申请号：US954133
申请日：1992-09-30
申请人： Fuk Ho P. Ng , Shivaling S. Mahant-Shetti
发明人： Fuk Ho P. Ng , Shivaling S. Mahant-Shetti
IPC分类号： G06F7/02 , G06F7/49 , G06F7/50 , G06F7/544
CPC分类号： G06F7/50 , G06F7/544 , G06F2207/5442
摘要： For subtracting two thermometer coded words each having a most significant byte (MSB) and a least significant byte (LSB), a check is made to see if a borrowing condition exists. A first borrowing condition exists if word B MSB is greater than word A MSB (12) and word A LSB is greater than word B LSB (14). In such a case a borrow (16) must take place on word B MSB. A second borrowing condition exists when word A MSB is greater than word B MSB (18) and word B LSB is greater than word A LSB (20). In this instance a borrow (22) must take place on word A MSB through a shift right function. After borrowing occurs, a subtraction process (24) takes place by exclusive-or'ing word A and B MSBs. The result is reconstructed (26) through a shift right process into proper thermometer code format. If a borrowing condition exists, an appropriate LSB is translated (28, 30) before an LSB subtraction process (32) takes the resulting word A and word B LSBs and exclusively-or's them together. The result is reconstructed (34) through a shift right rotate left process to place the LSB in proper thermometer code format. For addition, the first word is reversed (302) and added to the second word by an exclusive-or process. The result is inverted (306) and reconstructed (308) into proper thermometer code format. A carry (311) check is made and the reconstructed output is adjusted (310) whenever a carry condition exists. A further MSB adjustment (312) is made when the carry causes an overflow in the MSB result.
摘要翻译：为了减去每个具有最高有效字节（MSB）和最低有效字节（LSB）的两个温度计编码字，检查是否存在借用条件。如果字B MSB大于字A MSB（12），字A LSB大于字B LSB（14），则存在第一个借用条件。在这种情况下，借用（16）必须在B字母MSB上进行。当字A MSB大于字B MSB（18），字B LSB大于字A LSB（20）时，存在第二个借用条件。在这种情况下，借口（22）必须通过转移权函数在单词A MSB上进行。在借用发生之后，通过排除或者使用字A和B的MSB来进行减法处理（24）。结果通过正确的转换重建（26）到适当的温度计代码格式。如果存在借用条件，则在LSB减法处理（32）将所得到的字A和字B LSB作为LSB之前，将它们排列在一起之前，转换适当的LSB（28,30）。通过右移旋转左进程重建（34）结果，将LSB置于适当的温度计代码格式。另外，第一个单词是反向的（302），并通过一个独占或者进程添加到第二个单词中。结果反转（306）并重建（308）成适当的温度计代码格式。进行进位（311）检查，并且每当存在进位条件时重建输出被调整（310）。当进位导致MSB结果中的溢出时，进一步进行MSB调整（312）。

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