Cordless Phone Data Transfer via Format Conversion
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Solution Overview
Problem
Cordless phone systems lack the ability to transfer specific data from a mobile phone to a designated cordless phone slave device without requiring additional hardware, leading to increased costs and processing capacity decreases due to format conversion and image resizing needs.
Innovation Solution
A cordless phone apparatus and system that transfers data by using slave device information to convert and transmit specific data, such as ringtone and wallpaper, to a designated cordless phone slave device, utilizing a cordless phone master device to determine the necessary conversion formats based on the slave device capabilities, eliminating the need for new hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a cordless phone slave device receives audio data in MP3 or WAV format from a mobile phone, then the data can be transferred without format conversion, but the slave device cannot play back the audio data as it is and must convert the format, increasing processing capacity demands and cost
Solution Approach 1:
The patent introduces a format conversion unit in the cordless phone slave device that acts as an intermediary to convert received audio data from various formats (MP3, WAV, etc.) into the internal PCM format required for playback. This mediator component resolves the incompatibility between diverse input formats and the fixed internal processing format, enabling universal data reception without requiring the device to support multiple playback formats natively.
Solution Approach 2:
The patent applies parameter changes by converting audio data between different format parameters (encoding type, sample rate, bit depth) to match the slave device's internal requirements. The format conversion unit dynamically adjusts these parameters based on the input data characteristics, transforming incompatible audio representations into the standardized PCM format that the device's CODEC can process efficiently.
2Manufacturing precision
If image data of high resolution (SVGA or XGA) is transmitted from a mobile phone to a cordless phone slave device, then the image quality is preserved, but the slave device cannot display the image data as it is and must re-size the image, increasing processing capacity and cost
Solution Approach 1:
The patent implements preliminary action by performing image resizing and format conversion in advance, during the data transfer process from the mobile phone to the cordless phone slave device. The image processing unit pre-processes high-resolution images (SVGA, XGA) by resizing them to match the slave device's display capabilities before storage, eliminating the need for real-time processing during playback and reducing the device's processing requirements.
Solution Approach 2:
The patent creates a scaled-down copy of the high-resolution image data that is suitable for the slave device's display screen. Instead of attempting to display the original high-resolution data, the system generates an optimized copy with appropriate resolution and format, preserving the essential visual information while adapting it to the hardware constraints of the cordless phone device.
3Adaptability or versatility
If a host device controller (HDC) is provided in each cordless phone slave device to couple with external storage devices, then data transfer capability is improved, but cost increases
Solution Approach 1:
The patent implements universality by designing the cordless phone slave device with a multi-functional architecture that can receive and process various types of data (audio, images, text) from multiple sources (mobile phones, computers, other slave devices) without requiring dedicated HDC hardware for each source type. The unified data reception interface and format conversion unit handle diverse input formats and protocols, eliminating the need for separate coupling controllers for different external devices.
Solution Approach 2:
The patent applies self-service by enabling the cordless phone slave device to autonomously handle format conversion and data processing tasks that would otherwise require additional host device controllers. The built-in format conversion unit and image processing unit allow the device to independently adapt received data to its internal requirements, eliminating the need for external HDC components to manage format compatibility and reducing overall system cost.
Data Source
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AI summary
Slave device information transmitter (127) of the present invention transmits slave device information to a mobile phone. Slave device transfer data receiver (122) receives slave device transfer data from the mobile phone, and stores the slave device transfer data in storage (103). Destination slave device determiner (123) extracts destination slave device information from slave device transfer data stored in storage(103), and selects a cordless phone slave device which is a destination of the slave device transfer data, based on destination slave device identification information which is set in the destination slave device information. Slave device transfer data transmitter (125) transmits slave device transfer data to a cordless phone slave device selected by destination slave device determiner (123).