REMOTE CONTROL TOY CAR WITH WIRELESS REAL-TIME TRANSMISSION OF AUDIO AND VIDEO SIGNALS

• US 20140218524A1
• Filed: 02/07/2013
• Published: 08/07/2014
• Est. Priority Date: 02/07/2013
• Status: Abandoned Application

• Current Assignee: Yat F.U. Cheung
• Original Assignee: Yat F.U. Cheung
• Inventors: CHEUNG, Yat Fu
• Application Number:
  US13/761,169
• Publication Number:
  US 20140218524A1
• Time in Patent Office: Days
• US Class Current: 348/148
• CPC Class Codes: A63H 17/26 Details; Accessories drive mechanisms A63H29/00
• CPC Class Codes: A63H 30/04 using wireless transmission

Abstract

This invention discloses a remote control toy car wirelessly communicable with a client terminal and configured to support wireless real-time transmission of video and audio signals. The toy car comprises a microprocessor, a clock generation circuit, a program memory, a random access memory, a power conversion circuit, a power supply module, a video capturing circuit, an audio circuit and a radio transceiving circuit. The toy car is compact, convenient to carry, ready to use and simple to operate. Furthermore, it has a rechargeable battery. When the toy car is wirelessly linked to a smart mobile terminal with Wi-Fi functions, wireless video playing can be achieved, and no settings are required for the smart mobile terminal. Picture taking and audio/video recording can be achieved by the smart mobile terminal. The toy car can also produce an audio output upon receiving audio data packets sent from the client terminal.

Claims

1. A remote control toy car wirelessly communicable with a client terminal and configured to support wireless real-time transmission of audio and video signals, the toy car comprising a microprocessor, a clock generation circuit, a program memory, a random access memory, a power conversion circuit, a power supply module, a video capturing circuit, a radio transceiving circuit and an audio circuit, wherein:

the microprocessor, coupled to the clock generation circuit, the program memory, the random access memory, the power conversion circuit, the video capturing circuit, the radio transceiving circuit and the audio circuit, is configured to execute one or more processes comprising;

after power-up initialization of the microprocessor, activating the video capturing circuit and the audio circuit;

according to instructions stored in the program memory, obtaining captured video data from the video capturing circuit and captured audio data from the audio circuit, followed by further processing, compressing and packetizing the captured video data and the captured audio data to yield first video data packets and first audio data packets, and storing the first video data packets and the first audio data packets in the random access memory;

when the microprocessor receives via the radio transceiving circuit a request signal issued from the client terminal, retrieving the first video data packets and the first audio data packets from the random access memory according to the instructions stored in the program memory, and forwarding the first video data packets and the first audio data packets to the client terminal through the radio transceiving circuit, thereby allowing the client terminal to display images and generate audio sound in a real-time manner according to the first video data packets and the first audio data packets; and

when the microprocessor receives via the radio transceiving circuit second audio data packets wirelessly sent from the client terminal, forwarding the second audio data packets to the audio circuit for processing in order to produce an audio output via a speaker;

the clock generation circuit is configured to provide one or more clock signals required by the microprocessor;

the power conversion circuit is used for providing power to the microprocessors and devices coupled thereto; and

the power supply module, coupled to the power conversion circuit, is used for providing power to the power conversion circuit.

2. The remote control toy car of claim 1, wherein the random access memory is further used for storing system files and control instruction sets.

3. The remote control toy car of claim 1, wherein the power supply module comprises:

a rechargeable battery configured to provide power to the power conversion circuit;

a charging port configured to receive external power from outside the remote control toy car; and

a charging circuit coupled to the rechargeable battery and the charging port, configured to receive the external power via the charging port and to convert the external power into an electrical power source, so as to allow the rechargeable battery to be recharged when the electrical power source is fed to the rechargeable battery.

4. The remote control toy car of claim 3, wherein the charging port is a mini USB interface.

5. The remote control toy car of claim 1, wherein the program memory is a FLASH memory.

6. The remote control toy car of claim 1, wherein the random access memory is a RAM.

7. The remote control toy car of claim 1, wherein the radio transceiving circuit is configured to carry out data transmission via a Wi-Fi short-range wireless local area network.

8. The remote control toy car of claim 1, wherein the audio circuit is coupled to the microprocessor via an I2C interface for data exchange.

9. The remote control toy car of claim 1, wherein the video capturing circuit or the radio transceiving circuit is coupled to the microprocessor via a standard USB interface.

10. The remote control toy car of claim 1, wherein the power conversion circuit is coupled to the power supply module via a USB interface.