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1. 发明公开

EP0077844A1 Pacemaker utilizing microprocessor DMA for generating output pulse sequences 有权转让
标题翻译：以产生输出脉冲序列的微处理器使用的方向起搏器直接存储器存取。
公开(公告)号：EP0077844A1
公开(公告)日：1983-05-04
申请号：EP81108939.0
申请日：1981-10-26
申请人： VITAFIN N.V.
发明人： Mensink, Kornelis A. , Brouwer, Henk L.
IPC分类号： G06F1/04
CPC分类号： A61N1/37211 , G06F1/04
摘要： Apparatus for producing programmable timing signals, having a microprocessor element (50) with means for carrying out DMA operations when said microprocessor element Is in a DMA mode, memory (51,52) interconnected with said microprocessor element and containing a stored program and a plurality of data words stored at predetermined addresses for selection by said microprocessor when In said DMA mode, comprising controller means (58) for transforming received data words into timing signals, connecting means (54,56) for inter-connecting said microprocessor element, said controller and said memory, said controller having means (85,84) for setting said microprocessor in said DMA mode upon receipt of a predetermined signal generated by said program, means (68) for receiving data words directly from said memory under control of said microprocessor when said microprocessor is in said DMA mode, and means (65,66,72,73) for generating a two state timing signal corresponding to the data content of one or more such received data words. Hereby the operability of the pacer is improved whereas simultaneously low power requirements are maintained.

2. 发明授权

EP0077845B1 Programmable cardiac pacemaker 有权转让
标题翻译：可编程的心脏病患者
公开(公告)号：EP0077845B1
公开(公告)日：1987-03-04
申请号：EP81108940.8
申请日：1981-10-26
申请人： VITAFIN N.V.
发明人： Boute, W. , Wittkampf, Frederik H. M. , van Arragon, G. W. , Mensink, Kornelis A. , Brouwer, Henk L.
IPC分类号： A61N1/362
CPC分类号： A61N1/37252 , A61N1/365 , A61N1/37

3. 发明授权

EP0077844B1 Pacemaker utilizing microprocessor DMA for generating output pulse sequences 有权转让
标题翻译：用于生成输出脉冲序列的微处理器DMA
公开(公告)号：EP0077844B1
公开(公告)日：1987-01-21
申请号：EP81108939.0
申请日：1981-10-26
申请人： VITAFIN N.V.
发明人： Mensink, Kornelis A. , Brouwer, Henk L.
IPC分类号： G06F1/04
CPC分类号： A61N1/37211 , G06F1/04

4. 发明公开

EP0159709A2 Low power high speed analog to digital converter 失效
标题翻译： Hochgeschwindigkeits-Analog / Digital-Wandler mit niedriger Leistungsaufnahme。
公开(公告)号：EP0159709A2
公开(公告)日：1985-10-30
申请号：EP85104992.4
申请日：1985-04-24
申请人： VITAFIN N.V.
发明人： Mensink, Kornelis A. , Brouwer, Henk L.
IPC分类号： H03M1/38
CPC分类号： H03M1/44
摘要： Apparatus and method for converting an analog signal into a digital signal, utilizing three closely matched capacitors C 1 , C 2 , C 3 ) on a CMOS chip. A reference voltage is first sampled, divided and then compared with a sampled analog voltage, the comparison resulting in a first bit signal. If the bit signal is a 1, the divided signal is substracted from the sampled analog signal. After the initial sampling, the series of steps is carried n times to generate an n bit signal. The utilization of CMOS circuitry and just the three low capacitance capacitors, only two of which are charged during a conversion, results in extremely low power operation.
摘要翻译：在CMOS芯片上利用三个紧密匹配的电容器C1，C2，C3将模拟信号转换为数字信号的装置和方法。参考电压首先被采样，分频，然后与采样的模拟电压进行比较，比较产生第一位信号。如果位信号为1，则分频信号从采样的模拟信号中减去。在初始采样之后，执行一系列步骤n次以产生n位信号。 CMOS电路的利用和仅三个低容量电容器，其中只有两个在转换期间被充电，导致极低的功率操作。

5. 发明公开

EP0077845A1 Programmable cardiac pacemaker 有权转让
标题翻译：可编程起搏器。
公开(公告)号：EP0077845A1
公开(公告)日：1983-05-04
申请号：EP81108940.8
申请日：1981-10-26
申请人： VITAFIN N.V.
发明人： Boute, W. , Wittkampf, Frederik H. M. , van Arragon, G. W. , Mensink, Kornelis A. , Brouwer, Henk L.
IPC分类号： A61N1/362
CPC分类号： A61N1/37252 , A61N1/365 , A61N1/37
摘要： A programmable pacemaker apparatus having means for receiving programme information from an external source, means for generating and delivering stimulus signals, means for sensing the occurrence of natural heart-beats in a patient, and a battery source powering the apparatus. A microprocessor (50) combined with program instructions stored in a memory controls the operation of said pacemaker. A controller circuit means external to said microprocessor and interconnected therewith for controlling its operating state has means for determining the occurrence of given events. Said controller means further comprises means for stopping operation of said microprocessor on command from said microprocessor and for starting operation of said microprocessor upon determination of one of said events, whereby said microprocessor normally is on less than about 25 % of the time. The pacemaker offers selectable flywheel and overdrive modes.

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