JPH07107029A - Battery pack for portable radio telephony equipment - Google Patents

Abstract

PURPOSE:To provide a battery pack capable of being shared among portable radio telephony equipments whose power-supply voltage values and bus timings are different by adding a regulator part, a bus interface part and the control part for the entire equipment to the battery pack. CONSTITUTION:When this battery pack is connected to the portable radio telephony equipment, the output voltage 5V of a battery part 1 is supplied to a data storage part 8 and the control part 7 inputs power-supply voltage value and bus timing information suited for the equipment from the data storage part 8 by the predetermined voltage value and bus timing. Then, the control part 7 lets the appropriate power-supply voltage value outputted from the regulator part 5 corresponding to the inputted information of the power-supply voltage value and an external interface part 3 supplies the inputted voltage to the respective circuits of the equipment. Also, the control part 7 sets the bus interface part 6 so as to be the appropriate bus timing capable of performing the input 7 output of data between the control part 4 and the data storage part 2 corresponding to the inputted bus timing information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to information such as a telephone number stored in a memory in a battery pack between portable radio telephone devices having different power supply voltage values and bus timings with a data storage unit in the battery pack. And a battery pack for a portable wireless telephone device capable of inputting the information and outputting the information to a memory.

[0002]

2. Description of the Related Art In recent years, with the spread of portable wireless telephone devices,
It has been desired to share information such as a telephone number among a plurality of mobile wireless telephone devices, and a battery pack having a data storage unit for storing the information in the battery pack has come to be used.

A conventional battery pack will be described below with reference to the drawings. FIG. 5 is a block diagram of a conventional battery pack. In the battery pack shown in FIG.
Is a battery unit composed of at least two rechargeable unit cells connected in series, 2 is a data storage unit for storing data, and in the mobile radio telephone device, 3 is an external power supply voltage or signal to each circuit. An external interface unit 4 for supplying is a control unit for controlling the entire apparatus.

With respect to the conventional battery pack including the above components, the relationship and operation of the components will be described below. When the battery pack is connected to the body of the mobile phone,
The battery unit 1 outputs a certain voltage (for example, 5V ± 10%) to the external interface unit 3, and the external interface unit 3 supplies the voltage to each circuit in the mobile radio telephone device. When inputting / outputting information such as a telephone number with the data storage unit 2 in the battery pack from the portable wireless telephone device,
The control unit 4 inputs / outputs data to / from the data storage unit 2 in the battery pack via the external interface unit 3 by predetermined bus iterating.

[0005]

However, in the above-mentioned conventional battery pack, it is said that the battery pack cannot be shared between portable radio telephone devices having different power supply voltage values and bus timings with the data storage unit 2 in the battery pack. I had a problem.

It is an object of the present invention to solve the above problems and to provide a battery pack capable of sending an appropriate power supply voltage and data of a memory in the battery pack suitable for each portable radio telephone device. .

[0007]

In order to achieve the above object, the present invention provides a battery pack with a regulator section for varying the output voltage of the battery and a bus timing for input / output data from the data storage section. A bus interface unit and a control unit for controlling the entire device are added.

[0008]

With the above-described structure, the present invention makes it possible to share a battery pack among portable radio telephone devices having different power supply voltage values and bus timings with memories.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the battery pack shown in FIG. 1,
Reference numeral 1 is a battery unit, 2 is a data storage unit, and 3 is an external interface unit in the portable radio telephone device, 4 is a control unit, and these are the same as the conventional example shown in FIG. Omit it.

The features of this embodiment are: a battery pack, a regulator unit 5 for varying the output voltage of the battery unit 1, a bus interface unit 6 for varying the bus timing of input / output data from the data storage unit 2, and a device. A control unit 7 for controlling the whole is provided, and a data storage unit 8 that stores a power supply voltage value suitable for a portable wireless telephone device and information on an appropriate bus timing with the data storage unit 2 in the battery pack. Has been established.

The operation of the battery pack having the above structure will be described below. When the battery pack is connected to the mobile radio telephone device, a voltage of 5V is supplied to the data storage unit 8, and the control unit 7 in the battery pack stores the data in the mobile radio telephone device according to a predetermined voltage value and bus timing. From the unit 8, a power supply voltage value suitable for the device and information on an appropriate bus timing with the data storage unit in the battery pack are input.

The data storage unit 2 has one clock line and one clock line.
Two-wire serial EEPR consisting of two data lines
OM (Electrically Erasable Programmable Read Only
An example of the data structure of the bus timing information in the case of (Memory) will be described with reference to FIG.

In FIG. 2, the values of times Taa and Tdh that define the timing of the serial data required by the control unit 4 with respect to the serial clock transmitted by the control unit 4 in the portable radio telephone device are the bus timing information. The control unit 7 in the battery pack causes the regulator unit 5 to output an appropriate power supply voltage value to the external interface unit 3 according to the input information (for example, the output voltage of the battery unit 1 is 5V, which is suitable for a portable radio telephone device). Power supply voltage value is 3.3V
Then, the regulator unit 5 steps down the voltage by 1.7V. ). The external interface unit 3 receives the input voltage
The control unit 7 supplies each circuit of the device and the bus interface unit 6 in accordance with the input information so that the bus timing becomes appropriate so that data can be input / output between the control unit 4 and the data storage unit 2. Set to.

When data is stored in the battery pack from the portable radio telephone device, the control unit 4 in the portable radio telephone device is used.
Outputs the data to the data storage unit 2 in the battery pack via the external interface unit 3 and the bus interface unit 6.

When the data in the battery pack is read from the portable radio telephone device, the control unit 4 in the portable radio telephone device is used.
However, the data is input from the data storage unit 2 in the battery pack via the external interface unit 3 and the bus interface unit 6.

Referring to FIG. 3, the data storage unit 2 has a two-wire serial EEPROM (Electrically Erasable Programm) having one clock line and one data line.
An example of the configuration of the bus interface unit 6 in the case of "ableRead Only Memory" will be described when data in the battery pack is read from the portable wireless telephone device.

In FIG. 3, the control unit 7 in the battery pack is shown.
However, at least a clock that is at least 10 times faster than the serial data output from the data storage unit 2 is transmitted to the serial / parallel conversion unit. The serial / parallel conversion unit uses the clock to convert the input serial data into parallel data 1 to 8 and outputs the parallel data to the selector unit. The parallel data has a delayed phase.

FIG. 4 shows the relationship between the phases of the clock, serial data and parallel data from the control unit 7 in the battery pack. The parallel data 1 to 8 are delayed in phase. Each delay time is a cycle time of one clock of the clock from the control unit 7. In response to the control signal from the control unit 7, the selector unit outputs, from the parallel data 1 to 8, data that satisfies the time defining the bus timing of the bus timing information to the mobile radio telephone device.

[0019]

As is apparent from the above description of the embodiments, the present invention can provide a battery pack with a built-in memory which can be shared between portable radio telephone devices having different power supply voltage values and different memory bus timings. .

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a battery pack according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a data configuration of bus timing information of the battery pack.

FIG. 3 is a diagram showing an example of a configuration of a bus interface unit of the battery pack.

FIG. 4 is a diagram showing an example of a phase relationship of data in a bus interface section of the battery pack.

FIG. 5 is a block configuration diagram of a conventional battery pack.

[Explanation of symbols]

 1 Battery Section 2 Data Storage Section 3 External Interface Section 4 Control Section 5 Regulator Section 6 Bus Interface Section 7 Control Section 8 Data Storage Section

Claims (2)

[Claims] 1. A battery unit composed of one or more unit cells, a regulator unit for varying the output voltage of the battery unit and supplying a voltage to a portable wireless telephone device, a data storage unit for storing data, and the data. A bus interface unit for varying the bus timing of input / output data between the storage unit and the portable radio telephone device, and a control unit for controlling the entire device, and supplying different voltage values to the portable radio telephone device,
A battery pack for a portable wireless telephone device, wherein the bus timing between the portable wireless telephone device and a data storage unit is variable so that the portable wireless telephone device can be shared by different portable wireless telephone devices. 2. The battery pack for a portable wireless telephone device according to claim 1, wherein the data stored in the portable wireless telephone device is read.