Information processing apparatus, control method, and recording medium

Patent metadata

Field	Value
Publication number	US-9961224-B2
Application number	US-201615042375-A
Country	US
Kind code	B2
Filing date	Feb 12, 2016
Priority date	Feb 16, 2015
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

An information processing apparatus includes a moving body detector configured to detect approach of a moving body within a range of a predetermined detection distance, a status controller configured to restore, upon detection of the approach of the moving body, the information processing apparatus to a predetermined electric energy mode, an operation detector configured to detect an operation of a user, a storage part configured to store history information indicating the approach of the moving body and history information indicating the operation of the user, a computing part configured to re-compute the predetermined detection distance based on a restoration time required for restoring the information processing apparatus to the predetermined electric energy mode, and the history information stored in the storage part, and a setting part configured to set the re-computed predetermined detection distance in the moving body detector.

First claim

What is claimed is:

1. An information processing apparatus comprising:
a moving body detector configured to detect approach of a moving body within a range of a first detection distance;
memory storing computer-executable instructions; and
one or more processors configured to execute the computer-executable instructions such that the one or more processors are configured to,
restore, upon detection of the approach of the moving body, the information processing apparatus to a first electric energy mode,
detect an operation of a user,
store, in storage of the information processing apparatus, history information indicating the approach of the moving body and history information indicating the operation of the user,
compute a mean time based on the history information stored in the storage, the mean time being an average of a plurality of approach times, each approach time being a time between a time at which an approach of the moving body is detected and a time at which an operation of the user is detected, and
re-compute the first detection distance based on,
a restoration time required for restoring the information processing apparatus to the first electric energy mode,
the computed mean time, and
the history information stored in the storage, and

set the re-computed first detection distance in the moving body detector,

wherein the one or more processors are configured to execute the computer-executable instructions such that the re-computing of the first detection distance includes,
when a first proportion is greater than or equal to a threshold value, and the mean time is determined to be longer than the restoration time,
reducing the first detection distance in the moving body detector, and

when the first proportion is less than the threshold value, and the mean time is determined to be longer than the restoration time,
increasing the first detection distance in the moving body detector,

the first proportion being a proportion of records, with respect to a plurality of records included in the history information, that are first records,
each first record being a record that indicates an absence of person detected and is preceded by a record that indicates a presence of a person detected.

2. The information processing apparatus according to claim 1 , wherein the one or more processors are configured to execute the computer-executable instructions such that the one or more processors are further configured to re-compute the first detection distance based on,
a ratio of the restoration time and the computed mean time, and
a current first detection distance.

3. The information processing apparatus according to claim 1 , wherein the one or more processors are configured to execute the computer-executable instructions such that the one or more processors are further configured to compute the mean time by excluding information satisfying a first condition from the history information stored in the storage.

4. The information processing apparatus according to claim 3 , wherein the one or more processors are configured to execute the computer-executable instructions such that the one or more processors are further configured to compute the mean time by excluding a specific record from the history information stored in the storage.

5. The information processing apparatus according to claim 1 , wherein,
the moving body detector is further configured to detect leaving of the moving body within the range of the first detection distance, and
the one or more processors are configured to execute the computer-executable instructions such that the one or more processors are further configured to,
store, in the storage, history information indicating the leaving of the moving body, and
when the operation of the user is not detected in an interval between the time at which the approach of the moving body is detected and a time at which the leaving of the moving body is detected, compute the mean time by excluding a record indicating that the approach of the moving body is detected, based on the history information stored in the storage.

6. The information processing apparatus according to claim 5 , wherein the one or more processors are configured to execute the computer-executable instructions such that the one or more processors are further configured to, when a plurality of the operations of the user are detected in the interval between the time at which the approach of the moving body is detected and the time at which the leaving of the moving body is detected,
compute the mean time by excluding a record indicating that the operation of the user is detected from a second time onward, based on the history information stored in the storage.

7. The information processing apparatus according to claim 5 , the one or more processors are configured to execute the computer-executable instructions such that the one or more processors are further configured to a determine whether to re-compute the first detection distance based on the history information stored in the storage.

8. The information processing apparatus according to claim 7 , wherein the one or more processors are configured to execute the computer-executable instructions such that the one or more processors are further configured to determine to re-compute the first detection distance when,
a proportion of records not including the user's operation, from among the plurality of records, is greater than or equal to a first threshold, and
the mean time is longer than the restoration time in an interval between a time at which the approach of the moving body is detected and a time at which the leaving of the moving body is detected.

9. The information processing apparatus according to claim 8 , wherein the one or more processors are configured to execute the computer-executable instructions such that the one or more processors are further configured to determine to re-compute the first detection distance when,
the proportion of records not including the user's operation, from among the plurality of records, is less than the first threshold, and
the mean time is shorter than the restoration time in the interval between the time at which the approach of the moving body is detected and the time at which the leaving of the moving body is detected.

10. The information processing apparatus according to claim 1 , wherein the one or more processors are configured to execute the computer-executable instructions such that the one or more processors are further configured to,
receive an operation of the user, and
detect the operation of the user performed on the Information processing apparatus.

11. The information processing apparatus according to claim 1 , further comprising:
a human body detector configured to detect approach and leaving of a person, wherein
the moving body detector is configured to detect the approach of the moving body using the human body detector, and
the one or more processors are configured to execute the computer-executable instructions such that the first detection distance set by the one or more processors is set in the human body detector.

12. The information processing apparatus according to claim 1 , wherein the one or more processors are configured to execute the computer-executable instructions such that the one or more processors are further configured to change a coefficient used for re-computing the first detection distance based on information indicating a first size of a detection area.

13. The information processing apparatus according to claim 1 , wherein the one or more processors are configured to execute the computer-executable instru

Assignees

• Utoh Yohsuke
• Ricoh Co Ltd

Inventors

• Utoh Yohsuke

Classifications

• H04N1/00896 Primary

  using a low-power mode, e.g. standby · CPC title

• H04N1/00891

  Switching on or off, e.g. for saving power when not in use (H04N1/00896 takes precedence) · CPC title

• G06K9/00369

  Physics · mapped topic

• H04N2201/0094

  Multifunctional device, i.e. a device capable of all of reading, reproducing, copying, facsimile transception, file transception · CPC title

• H04N1/00381

  Input by recognition or interpretation of visible user gestures (manual input means, e.g. digitisers, writing tablets H04N1/00392; gesture input to computers G06F3/017; recognition algorithms G06V40/20) · CPC title