Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2000-06-14
2002-11-19
Hoff, Marc S. (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C702S064000
Reexamination Certificate
active
06484110
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a mobile station, and more particularly, to a method for displaying an available time according to battery capacity in a mobile station, in which both an available standby time and an available call time of a mobile station are displayed according to a remained amount in a battery capacity.
2. Background of the Related Art
In general, the mobile station provides a variety of services, such as displaying a time period to be charged and a real time, memorizing, signal transmission/reception selection, and the like.
FIG. 1
illustrates a block diagram showing a system of a related art mobile station.
Referring to
FIG. 1
, the related art mobile station is provided with an antenna
110
for transmission/reception of a radio signal, a duplexer
120
for combining the transmission/reception of the radio signals through the antenna
110
to permit communication even by using only one antenna, a receiver
140
for converting a frequency of the radio signal received through the antenna
110
into a Intermediate frequency(IF), a transmitter
130
for converting frequencies of various signals processed for transmission for transmission through the antenna
110
into Radio frequencies(RF), and providing to the duplexer
120
, a high power detector
150
for detecting an output power of the transmitter
130
, a battery
160
for supplying an operation power to the mobile station, a memory(RAM)
200
for storing various information required for processing external data, a baseband part for converting outputs of the high power detector
150
, the receiver
140
and the battery
160
in digital signals, or converting a signal to be provided to the transmitter
130
into an analog signal, an MSM(Mobile Station Modem)
180
for controlling the transmission/reception of the radio signal of the mobile station, and a user interface
190
having a keypad, a liquid crystal display, a speaker, and a microphone for a user to select a mode or permit input/output the radio signal. The baseband part
170
has a digital/analog converter
171
for converting the digital signal form the MSM
180
into an analog signal and providing to the transmitter
130
, a first analog/digital convertor
172
for converting the analog signal from the receiver
140
into a digital signal and providing to the MSM
180
, and a second analog/digital convertor
173
for converting outputs of the high power detector
150
, the receiver
140
and the battery
160
into digital signals and providing to the MSM
180
. The MSM
180
has a demodulator
183
for demodulating a signal from the first analog/digital convertor
172
into a CDMA digital signal, a microprocessor
182
for receiving a signal from the second analog/digital convertor
173
and a key signal from the user interface
190
and providing a control signal corresponding to the received signals, a modulator
181
for modulating a data to be transmitted, and a vocoder
184
for converting the signal demodulated at the demodulator
183
into a speech signal, and converting the signal to be transmitted into a CDMA digital signal and providing to the modulator
181
. The user interface
190
has an LCD window
194
for displaying various data for the user, a microphone
192
for converting a speech of the user into an electrical signal, a speaker
193
for receiving and converting various electrical signals into vibration to convert the electrical signals into audible signals, a keypad
195
having a plurality of buttons for the user to input various data in using the mobile station, and a CODEC
191
for converting the digital speech signal from the vocoder
184
into an analog speech signal and presenting to the speaker
193
, and converting an analog speech signal from the microphone
192
into a digital speech signal and providing to the vocoder
184
.
The signal transmission/reception operation of the related art mobile station will be explained. A CDMA signal received through the antenna
110
undergoes a frequency conversion into a intermediate frequency(IF) at the receiver
140
. The analog signal is converted into a digital signal at the first analog/digital convertor
172
in the base band part
170
. The analog/digital convertor
172
is used for conversion of a voice data. The digital signal from the first analog/digital convertor
172
is demodulated into a CDMA digital signal at the demodulator
183
in the MSM
180
, and converted into a digital voice signal at the vocoder
184
. Once the digital signal is converted into an analog signal at the CODEC
191
in the user interface
190
, and forwarded to the speaker
193
, the voice can be heard. In the case of transmission, the analog voice signal received at the microphone
192
is converted into a digital voice signal at the audio CODEC
191
, into a CDMA digital signal at the vocoder
184
in the MSM
180
, and into a digital signal at the modulator
182
. The digital signal, then, is converted into an analog signal at the digital/analog convertor
171
in the baseband part
170
, and frequency up-converted at the transmitter
130
, and transmitted to a base station through the duplexer
120
and the antenna
110
.
Related art methods for displaying a strength of incoming signal and an available battery capacity in the aforementioned mobile station will be explained.
FIG. 2
illustrates a graph showing a battery discharge characteristic in a mobile station. In general, a lithium-ion battery is used for the mobile station. The battery is rechargeable, can provide approx. 4.2V when the battery is charged fully, and has a built-in protection circuit for blocking anymore use of the battery when the battery can only provide 2.7V due to prolonged use of the battery. That is, since 2.7V is preset as a cut off voltage by a mobile station vender, the mobile station becomes inoperative when the battery voltage is at 2.7V.
FIG. 3
illustrates a flow chart for explaining a related art method for displaying a strength of incoming signal and a method for displaying remained battery capacity in a related art mobile station.
Referring to
FIG. 3
, a radio signal from a base station is received at an antenna S
21
, passes through the antenna
110
and the duplexer
120
, and undergoes frequency up-converting at a receiver
140
S
22
. The signal is then converted into a digital signal at the second analog/digital convertor
173
S
23
. The second analog/digital convertor is used for a conventional input/output data. The strength of a signal received through the antenna and a battery voltage are read at a microprocessor
181
in an MSM
180
S
24
. Then, the strength of the received signal and the remained amount of battery charge are displayed S
25
. The remained amount of battery charge is displayed, with a range of voltage between 4.2V at the time of full charge and the 2.7V at the time of cut off divided equally into three to five. That is, when the remained amount of battery charge is divided into four, four pieces are displayed when the battery output voltage is 3.6V~4.2V, three pieces are displayed when the battery output voltage is 3.2V~3.6V, two pieces when the battery output voltage is 3.0V~3.2V, one piece when the battery output voltage is 2.7V~3.0V. Thus, the aforementioned related art mobile station digitizes the strength of a received signal and the remained amount of battery charge and displays on an LCD for informing to the user.
However, the related art method for displaying the remained amount of battery capacity has the following problems.
First, when the mobile station is turned on, a charge in the battery is consumed continuously from the time of turn on, and particularly, a rate of the consumption is greater during call than standby. As the remained amount of battery capacity is displayed, merely with the remained amount of battery capacity divided three to five in the related art method for displaying an available time period of the battery, the user can not see an available standby time and available call ti
Cooley Marc
Fleshner & Kim LLP
Hoff Marc S.
LG Information & Communications, Ltd
LandOfFree
Method for displaying available time of battery in mobile... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for displaying available time of battery in mobile..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for displaying available time of battery in mobile... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2915443