Analog-to-digital conversion device

Patent metadata

Field	Value
Publication number	US-10594331-B2
Application number	US-201916395286-A
Country	US
Kind code	B2
Filing date	Apr 26, 2019
Priority date	Nov 29, 2016
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

An analog-to-digital conversion device according to one or more embodiments independently executes each of events instructed by a host device. Each of two or more analog-to-digital converters include an execution control unit, an event management unit that notifies of a synchronization instruction when a synchronous conversion event set up with a synchronous conversion operation is instructed as the event, and an operation control unit. When a particular one of the analog-to-digital converters receives the synchronization instruction and the execution control unit of the particular analog-to-digital converter is confirmed ready for the analog-to-digital conversion, the operation control unit in the particular analog-to-digital converter notifies the particular analog-to-digital converter is ready for the analog-to-digital conversion to the analog-to-digital converter other than the particular analog-to-digital converter, and instructs the execution control unit to execute the synchronous conversion event after a confirmation that all of the analog-to-digital converters are ready for the analog-to-digital conversion.

First claim

The invention claimed is:

1. An analog-to-digital conversion device that independently executes each of events instructed by a host device, comprising:
at least two analog-to-digital converters that convert an inputted analog signal into a digital signal, wherein each of the analog-to-digital converters independently executes an event instructed by the host device, wherein each of the analog-to-digital converters comprises:
an execution control unit that controls execution of the analog-to-digital conversion;
an event management unit that notifies of a synchronization instruction when a synchronous conversion event set up with a synchronous conversion operation is instructed as the event; and
an operation control unit that makes a notification to the analog-to-digital converters, and instructs the execution control unit to execute the synchronous conversion event, wherein

when a particular one of the analog-to-digital converters receives the synchronization instruction and the execution control unit of the particular analog-to-digital converter is confirmed ready for the analog-to-digital conversion, the operation control unit in the particular analog-to-digital converter notifies the particular analog-to-digital converter is ready for the analog-to-digital conversion to the analog-to-digital converter other than the particular analog-to-digital converter, and instructs the execution control unit to execute the synchronous conversion event after a confirmation that all of the analog-to-digital converters are ready for the analog-to-digital conversion.

2. The analog-to-digital conversion device of claim 1 , wherein
in a state where the synchronization instruction is not notified due to a reason that the event is not the synchronous conversion event,
when the operation control unit of the particular analog-to-digital converter confirms that the execution control unit of the particular analog-to-digital converter is ready for the analog-to-digital conversion, the operation control unit instructs the execution control unit to execute the event without notifying the other analog-to-digital converter that the particular analog-to-digital converter is ready for the analog-to-digital conversion.

3. The analog-to-digital conversion device of claim 1 , wherein
the synchronous conversion event is set as a top priority among all of the events, and
the event management unit executes the synchronous conversion event on a priority basis when events including the synchronous conversion event are in a standby state.

4. An analog-to-digital conversion device that independently executes each of events instructed by a host device, comprising:
a plurality of analog-to-digital converters comprising at least a first and a second analog-to-digital convertors that convert an inputted analog signal into a digital signal, wherein each of the analog-to-digital converters independently executes an event instructed by the host device, wherein each of the analog-to-digital converters comprises:
an execution control unit that controls execution of the analog-to-digital conversion;
an event management unit that notifies of a synchronization instruction when a synchronous conversion event set up with a synchronous conversion operation is instructed as the event; and
an operation control unit that makes a notification to the analog-to-digital converters, and instructs the execution control unit to execute the synchronous conversion event, wherein

when the first analog-to-digital converters receives the synchronization instruction and the execution control unit of the first analog-to-digital converter is confirmed ready for the analog-to-digital conversion, the operation control unit in the first analog-to-digital converter notifies the first analog-to-digital converter is ready for the analog-to-digital conversion to at least the second analog-to-digital converter, and instructs the execution control unit to execute the synchronous conversion event after a confirmation that the plurality of analog-to-digital converters are ready for the analog-to-digital conversion.

Assignees

• Sanken Electric Co Ltd

Inventors

• Hayashi Hideki
• Takemoto Yoshitaka

Classifications

• H03M1/0624

  by synchronisation · CPC title

• H03M1/122 Primary

  Shared using a single converter or a part thereof for multiple channels, e.g. a residue amplifier for multiple stages · CPC title

• H03M1/12

  Analogue/digital converters ({H03M1/001 – } H03M1/10 take precedence) · CPC title

• H03M1/123 Primary

  Simultaneous, i.e. using one converter per channel but with common control or reference circuits for multiple converters · CPC title