# US 10,503,772 B2 · Device and method for recommending multimedia file to user

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- Number: US 10,503,772 B2
- Document ID: US10503772B2
- Status: Granted
- Kind: B2
- Application number: 15/482,934
- Filed: 2017-04-10
- Published: 2017-10-19
- Granted: 2019-12-10
- Earliest claimed: 2016-04-15
- Assignees: Hon Hai Precision Industry Co., Ltd.
- Applicants: Hon Hai Precision Industry Co., Ltd.
- Inventors: Wen-Chia Lee; Wei-Bin Liang; Sheng-Feng Weng; Chuan-Te Chan
- Web page: https://patentgrep.com/patent/US10503772B2

## CPC

- G06F 16/436: {using biological or physiological data of a human being, e.g. blood pressure, facial expression, gestures}
- A61B 5/165: {Evaluating the state of mind, e.g. depression, anxiety}
- G06F 16/44: Browsing; Visualisation therefor
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A multimedia file recommending device capable of matching entertainment file to user mood or state includes an input device to receive emotional value X sensed from or inputted by a user, a storage device, and a processor. The storage device stores multimedia files each associated with an emotional value. The processor selects a multimedia file from the multimedia database according to default rules, wherein a difference between the emotional value associated with the selected multimedia files and the emotional value X falling within a preset range. A multimedia file recommending method is also provided.

## Claims

### Claim 1

A multimedia file recommending device comprising:
an input device to receive an emotional value X inputted by a user;
a storage device to store a multimedia database, wherein the multimedia database stores a plurality of emotional values, each emotional value corresponds to one multimedia file; and
a processor to select a multimedia file according to a default rule, wherein the default rule is a difference between the emotional value associated with the selected multimedia files and the emotional value X inputted by the user falling within a preset range;
a biomedical sensor to detect physiological data of the user when the user plays back the multimedia file for a preset time period;
wherein the processor acquires the physiological data from the biomedical sensor, calculates a current emotional value Z of the user according to the physiological data of the user and a predetermined process, and selects another multimedia file according to the current emotional value Z of the user and the emotional value X inputted by the user, wherein the processor calculates a compensation value Y according to the formula Y=X−Z, and selects the multimedia file having an emotional value closest to X+Y.

### Claim 2 (depends on 1)

The multimedia file recommending device of claim 1, wherein the default rule comprises: selecting one or more music files, wherein a difference between the emotional values associated with the selected multimedia files and the inputted emotional value X falling within a preset range, and selecting one multimedia file from all the selected multimedia files randomly.

### Claim 3 (depends on 1)

The multimedia file recommending device of claim 1, wherein the default rule comprises: selecting one or more music files, wherein a difference between the emotional values associated with the selected music files and the inputted emotional value X falling within a preset range, and selecting one multimedia file played least frequently.

### Claim 4 (depends on 1)

The multimedia file recommending device of claim 1, wherein the default rule comprises: selecting one or more multimedia files, wherein a difference between the emotional value of the selected multimedia files and the inputted emotional value X falling within a preset range; deleting one or more selected multimedia files; and selecting one multimedia file from the remaining selected multimedia files randomly.

### Claim 5 (depends on 1)

The multimedia file recommending device of claim 1, further comprising a communication device to communicate with at least one client device and at least one multimedia database, wherein the multimedia database stores a plurality of emotional values, each emotional value corresponds to one multimedia file; the processor further receives the emotional value X inputted by the user from the client device and sends the selected multimedia files to the client device.

### Claim 6

A multimedia file recommending method applied in a multimedia file recommending device, the multimedia file recommending device comprising a processor and a storage device to store a multimedia database, the multimedia database stores a plurality of emotional values, each emotional value corresponds to one multimedia file, the method comprising:
receiving an emotional value X inputted by a user by the processor; and
the processor selecting a multimedia file from the multimedia database according to a default rule, wherein the default rule is a difference between the emotional value associated with the selected multimedia files and the emotional value X inputted by the user falling within a preset range;
detecting physiological data of the user by using a biomedical sensor when the user plays back the multimedia file for a preset time period; and
calculating a current emotional value Z of the user according to the physiological data of the user and a predetermined rule, and selecting another multimedia file according to the current emotional value Z of the user and the emotional value X inputted by the user, wherein the predetermined rule comprises the processor calculating a compensation value Y according to the formula Y=X−Z, and selecting the multimedia file having an emotional value closest to X+Y.

### Claim 7 (depends on 6)

The multimedia file recommending method of claim 6, wherein the default rule comprises: selecting one or more music files, wherein a difference between the emotional values associated with the selected multimedia files and the inputted emotional value X falling within a preset range, and then selecting one multimedia file from all the selected multimedia files randomly.

### Claim 8 (depends on 6)

The multimedia file recommending method of claim 6, wherein the default rule comprises: selecting one or more music files, wherein a difference between the emotional values associated with the selected music files and the inputted emotional value X falling within a preset range, and selecting one multimedia file played least frequently.

### Claim 9 (depends on 6)

The multimedia file recommending method of claim 6, wherein the default rule comprises: selecting one or more multimedia files, wherein a difference between the emotional value of the selected multimedia files and the inputted emotional value X falling within a preset range; deleting one or more selected multimedia files; and selecting one multimedia file from the remaining of the selected multimedia files randomly.

### Claim 10

A multimedia file recommending method applied in a client device communicating with a multimedia file recommending device, the multimedia file recommending device communicating with a multimedia database, the multimedia database storing a plurality of emotional values, each emotional value corresponds to one multimedia file, the client device comprising a communication device, an input device, a biomedical sensor, and a recommend playback device, the method comprising;
receiving an emotional value X inputted by a user by the input device of the client device;
sending the emotional value X to the multimedia file recommending device the communication device;
receiving a multimedia file selected from the multimedia database according to a default rule by the communication device, from the multimedia file recommending device; and
playing back the multimedia file by the recommend playback device of the client;
detecting physiological data of the user by using the biomedical sensor when the user plays back the multimedia file for a preset time period; and
sending the physiological data to the multimedia file recommending device and receiving another multimedia file selected from the multimedia database having an emotional value closest to X+Y, wherein Y is calculated according to a formula Y=X−Z, wherein Z is a current emotional value of the user calculated according to the physiological data of the user and a predetermined rule.